15 Warning Signs of High Functioning Autism in Children - Very Anxious Mommy (2024)

Whether you are familiar with autism or not, it’s very likely that you know or have met someone who has autism spectrum disorder. When people think of autism, they often picture a child who cannot speak or care for themselves.

Of course, that is autism, but one thing that’s not as well known is that autism spectrum disorder has a very broad set of symptoms and characteristics.

There are also several different functioning levels of autism including mild, moderate, and severe. However, these levels also have a wide variety of symptoms that can be different for each person.

Now, your child’s doctor is looking out for any signs of severe autism by keeping an eye on their developmental progress. So if they are behind on walking, talking, and etc, those could be signs of autism.

However, when you have a child who is high functioning autistic, they can slip through the cracks because the signs may not be quite as obvious.

15 Warning Signs of High Functioning Autism in Children - Very Anxious Mommy (1)

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Autism Spectrum Disorder is a neurological disorder that impairs the ability to communicate and interact. Autism also impacts the nervous system. Autism does NOT have a cure but can be treated with therapy to help reduce the symptoms.

High functioning autism describes one with autism without an intellectual disability. However, people with high functioning autism have deficits in certain areas including communication, emotion, recognition, expression, and social interaction.

Another common name for high functioning autism is mild autism or Asperger’s syndrome (named after the Austrian pediatrician Hans Asperger). Although term Asperger’s syndrome is no longer used as an official diagnosis.

Today, these people are diagnosed with either high functioning autism or autism level 1.

Most children start showing signs of autism between the ages of 12 months – 18 months. And many of them are diagnosed by 3 years old. However, some children do not get diagnosed that early and many go into adulthood without being diagnosed.

The biggest problem with high functioning autism is that many parents and even some doctors are not sure what to look for. This is mostly because high functioning autistics can often blend in and adapt to situations.

As I said, when you think of Autism you often picture a child who is nonverbal and rocking back and forth in a corner. However, there are definitely clear signs of high functioning autism. They are just not necessarily the classic autism symptoms that you hear about.

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Now I certainly am not a doctor or any type of healthcare professional so you may wonder how I can be such an “expert” on high functioning autism. And honestly, I have three really good reasons.

I have high functioning autism.

I spent my entire life struggling to know why I was so different from everyone else. I was born in the 90s and back then only boys seemed to have high functioning autism. In fact, my younger brother was diagnosed with high functioning autism as a small child.

The reason that girls are often overlooked is that girls mature faster than boys and they usually have a better ability to adapt to their situations and blend in.

However, once I had my first child and she started to have symptoms of autism, I was later tested and diagnosed with high functioning autism at 26 years old. Now as an adult I have had to learn more about how to handle my symptoms. Being diagnosed literally changed my life, but I really wish I had been diagnosed as a child so I could have received therapy and understanding.

My Daughter has Autism

My daughter began showing signs of autism around 2 years old and I had to fight to get her diagnosed. As I said, girls are often overlooked for high functioning autism and this leads to situations like mine where I was not diagnosed until I was an adult.

My Son has Autism

Lastly, my son started showing signs of high functioning autism at around 12 months old. He had major sensory issues and at that same time, my daughter and I had just been diagnosed. Getting him seen and diagnosed with high functioning autism was so much easier and I believe that was partly because he’s a boy and the signs are more classic with boys.

Since both of my children and I all have high functioning autism, I don’t really know anything else. My husband is the only one in our family that does not have autism. I honestly feel like I have to be an expert because of this and an advocate as well.

So if you are a parent who suspects that your child may have high functioning autism here are 15 warning signs to look for.

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One of the first signs of high functioning autism that healthcare providers look for is the lack of eye contact. This is defined as avoiding eye contact or having trouble maintaining eye contact.

Here are just a few reasons that people with autism have difficulty with eye contact:

  • difficulty focusing
  • social anxiety
  • being unsure when to look at someone in the eyes

Although this is a common symptom of autism, not every autistic person has difficulty with eye contact.

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Many children on the autism spectrum walk on their tip-toes and the most common reason is because of sensory issues. This could also be due to muscular problems that are also common with autism.

My daughter is the tip-toe walking princess. She is 8 years old and has been walking on her tip-toes since she was one year old. Unfortunately, she goes through a ton of shoes because of how walking on her tip-toes wears them out so quickly.

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Have you noticed your child lining up similar toys or other objects? If so, it could be a sign of high functioning autism.

This is often an obsessive behavior or a child’s way of controlling and finding balance. Many children will line toys up but kids with high functioning autism do it the same way every time and can get very upset if it’s messed up.

Both of my children do this. In fact, my 4-year-old son has these magnetic tiles that he builds the same exact building over and over again.

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Children with autism often repeat certain words, phrases or even noises that they hear even if they are not actually engaging in a conversation. This is called echolalia.

Echolalia is very common among children with autism because it is often used when they are anxious, happy, or even distressed to express themselves.

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Social interaction is very stressful for people with autism and those with high functioning autism are no exception. This is mostly because those of us on the spectrum don’t know how to appropriately interact and have social anxiety.

I myself cannot be in a group full of people because I have so many thoughts running through my mind. Whether it’s at the grocery store, my child’s pediatrician’s office, or even outside I get overwhelmed. This is one huge reason that I work from home.

My children also have difficulties with social interaction. One of my children has no sense of social boundaries and things go right over her head, while my other child has difficulty playing with other children his age. He will often watch other kids play but will not play with them.

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People with high functioning autism often become intensely obsessed with a specific interest or idea. So if your child is like mine and has to have everything Paw Patrol at every minute of the day, this may be a sign of high functioning autism.

Now, I know that all children have their particular interests that they may seem obsessed with but what I am talking about is the need to focus all of their energy on that one topic.

Or for example, my son watches the same Paw Patrol episode over and over again. He doesn’t want anything else and if Paw Patrol is not available, you’d think he was self-destructing.

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Children with high functioning autism are commonly obsessive. I am talking about if you mess with that one toy that you believe is in the middle of the floor, you will wreck their world kind of obsessive.

Being obsessive is one huge symptom that I have had my entire life and it’s a feeling of trying to control everything in an uncertain world. I often will obsessive over one task and put all of my energy into it. This is sometimes ok, however, it can get out of hand if what I am trying to accomplish is not met.

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As I said children with high functioning autism can be very controlling of their surroundings.

This is mostly because having control gives them peace of mind. It also allows them to know exactly what to expect which makes everyday predictable and less frightening.

  • 9 Tips for Surviving Autism Meltdowns
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Of course, many children may feel like they don’t fit in with children their own age but there are a few differences with children that have high functioning autism. Like my son, many children with high functioning autism will not engage in play with others and are not sure how to respond to other children.

My daughter, on the other hand, will watch other children and then play but has a hard time knowing when it’s appropriate to say certain things or how to respect other’s personal space.

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What is stimming? Stimming is short for “self-stimulatory behavior”. Stimming is often a way for people on the autism spectrum to have sensory input or to relieve any sensory overload they may have. Some common examples of stimming include:

  • hand or arm flapping
  • clapping
  • snapping fingers
  • excessive blinking
  • rocking
  • head banging
  • pacing
  • spinning
  • spinning objects
  • vocal stimming (humming, yelling, mouth sounds, or repetitive words)

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Sensory seeking is often a way that a person with autism fulfills their need for sensory input. One way that autistic people accomplish this by “stimming.” A few other ways that autistic children seek sensory input is by:

  • running
  • jumping on and off furniture
  • dumping bins of toys
  • rubbing against walls
  • fidgeting
  • rough play
  • licking
  • making loud noises including turning on music
  • seeking bright lights (TVs, shiny objects, sunlight, strobe lights)
  • bear hugs
  • chewing on objects or clothing
  • splashing

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One of the biggest signs that I hear of high functioning autism is when your child has negative reactions to certain sounds, smells or textures.

So for sounds, if your child has a very difficult time with loud noises or needs everything to be very loud this is common for autistic children.

And if your child is bothered by smells to a point where it seems unbearable. (I cannot stand going down the laundry detergent aisle and it literally makes me sick).

Lastly, if your child only likes certain textures and can not handle other textures, this is a possible sign of high functioning autism. My children and I have several texture issues especially when it comes to foods.

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This symptom comes back to having control over their surroundings. When an autistic child’s routine is disrupted the world can become frightening and not knowing what comes next can lead to a meltdown.

I am 27 years old and as an autistic person, I still cannot handle when my routine is disrupted.

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Do you feel like your child is overly sensitive to things that may not be a big deal? This is my daughter. She is either very happy or very sad or angry. She gets sad or angry over what seems like a small thing, but to her, it’s not.

If this sounds like your child definitely talk with your pediatrician to avoid the emotions getting worse. I say this because I spent my whole life up until I was diagnosed having emotions that I could not control and feeling like something was wrong with me.

I suffered from depression and it wasn’t until I got diagnosed with high functioning autism that I learned that I was just wired differently. However, since I didn’t have the proper therapy as an autistic child, I now have major depressive disorder and still have a difficult time with my emotions.

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Is your child having difficulty getting to sleep and staying asleep? This is super common among autistic children and adults. There are several reasons that people with autism have problems with sleep. Here are a few:

  • sensory issues
  • racing thoughts
  • anxiety
  • insomnia
  • lack of melatonin15 Warning Signs of High Functioning Autism in Children - Very Anxious Mommy (17)
  • 10 Lifesaving Tips for Helping Your Child with Autism Sleep Through the Night
  • Can a Weighted Blanket Help My Child with Autism Sleep?

Many parents are often terrified of having a child who is autistic, but let me tell you. I don’t know any different. Both of my children are high functioning autistic just like me and I couldn’t imagine it any different.

However, if you suspect that your child may have high functioning autism and they have some of these symptoms talk with your child’s doctor and do not self diagnose. I truly hope this helps other families who are just not as familiar with high functioning autism and how it may look.

Related

15 Warning Signs of High Functioning Autism in Children - Very Anxious Mommy (2024)

FAQs

Can high-functioning autism cause anxiety? ›

Abstract. Anxiety and stress are everyday issues for many people with high-functioning autism, and while cognitive-behavioural therapy is the treatment of choice for the management of anxiety, there are challenges in using it with people with high-functioning autism.

What does anxiety look like in a child with autism? ›

Signs of anxiety in autistic children and teenagers

When autistic children get worried or anxious, the way they show their anxiety can look a lot like common characteristics of autism – stimming, obsessive and ritualistic behaviour and resistance to changes in routine.

Can parental stress cause autism? ›

Correlation analyses revealed that parenting stress was positively correlated with the children's ASD symptoms and behavioral problems. On the other hand, parenting stress was negatively correlated with the engagement coping and social functional support reported by the mothers.

Is severe anxiety a symptom of autism? ›

Even though it is not part of the autism diagnostic criteria, many autistic people experience high levels of anxiety. Research varies but the consensus suggests that it might be common for around 40-50% of autistic people to receive a clinical diagnosis of anxiety.

Can severe anxiety mimic autism? ›

Autism and anxiety can have similar symptoms, such as difficulties in social situations and with routine changes. Still, they are separate, though often co-occurring, conditions. Autism is neurodevelopmental, while anxiety is a mental health condition.

Am I autistic or just anxious? ›

People with social anxiety are likelier to talk in a timid voice and stand far from others. Autistic people (who aren't masking) may be less aware of typical neurotypical social expectations and stand too close to people (Cuncic, 2021). Note that Autistic people tend to either: stand too close to people or.

What is Kanner's syndrome? ›

Kanner's Syndrome

This type of autism is also known as Classic Autistic Disorder, and its symptoms can include challenges communicating or understanding others, engaging in virtually no eye contact, and a hypersensitivity to stimuli (smell, light, noise, taste, or touch).

Can you have autistic traits but not be autistic? ›

Population-based studies have found that, in addition to the individuals with ASD, many others exhibit subthreshold autistic or autisticlike traits (ALTs), that is, problems or peculiarities in sociocommunicative behavior, perception of others and self, and adaptation to the environment that do not meet formal criteria ...

What is autism distinct anxiety? ›

Such autism-distinct anxieties (henceforth referred to as distinct anxiety) include fears related to social confusion (as opposed to fear of negative evaluation, which is required for a DSM diagnosis of social phobia), uncommon phobias (e.g., specific sounds, facial features), excessive worry related to losing access ...

What is the most common anxiety disorder in ASD? ›

Prevalence studies in children

In a recent study of 108 high-functioning children with ASD enrolled in treatment trials for anxiety, almost all (91.6%) met criteria for two or more anxiety disorders, with greatest prevalence of social phobia (41.7%) and generalized anxiety disorder (25.9%) [7▪].

How do you rule out autism? ›

Diagnosing autism spectrum disorder (ASD) can be difficult because there is no medical test, like a blood test, to diagnose the disorder. Doctors look at the child's developmental history and behavior to make a diagnosis. ASD can sometimes be detected at 18 months of age or younger.

Can maternal anxiety cause autism? ›

Recent evidence has suggested that among environmental factors, maternal stress exposure may be an important factor in autism [23–25]. Psychological stress during pregnancy is important more broadly in behavioral and developmental outcomes in humans [28].

What triggers autism in children? ›

Although we know little about specific causes, the available evidence suggests that the following may put children at greater risk for developing ASD: Having a sibling with ASD. Having certain genetic or chromosomal conditions, such as fragile X syndrome or tuberous sclerosis. Experiencing complications at birth.

Can autism be caused by upbringing? ›

It's not clear what causes autism

It can affect people in the same family. So it may sometimes be passed on to a child by their parents. Autism is not caused by: bad parenting.

Do anxiety meds help people with autism? ›

Among high-functioning individuals, they may be particularly effective when combined with cognitive behavioral therapy. However, some doctors report that anti-anxiety medications seem to be less effective overall in people with autism spectrum disorder than they are in the general population.

Does anxiety medication help autism? ›

Research is mixed about whether these work for anxiety in autistic people. One study recommends that anti-anxiety medication be used only after behavioral interventions have not helped. Also, correcting problematic situations like bullying at school might help improve the anxiety.

What medication is used for autistic anxiety? ›

  • Fluoxetine. Fluoxetine is approved by the FDA for treating OCD and depression in adults and typically developing youths. ...
  • Fluvoxamine. The FDA has approved fluvoxamine for treating OCD in children and adults. ...
  • Escitalopram. ...
  • Citalopram. ...
  • Sertraline. ...
  • Other SRIs.

How do I know if Im slightly autistic? ›

finding it hard to understand what others are thinking or feeling. getting very anxious about social situations. finding it hard to make friends or preferring to be on your own. seeming blunt, rude or not interested in others without meaning to.

What is rad autism? ›

Background: Autism Spectrum Disorder (ASD) versus Reactive Attachment Disorder (RAD) is a common diagnostic challenge for clinicians due to overlapping difficulties with social relationships. RAD is associated with neglect or maltreatment whereas ASD is not: accurate differential diagnosis is therefore critical.

Is Rett syndrome autism? ›

Rett syndrome (RTT, MIM#312750) is a neurodevelopmental disorder (NDD) that is classified as an autism spectrum disorder (ASD) in the Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV)1 and occurs in approximately 1 in 10 000 female births.

What is FBA autism? ›

Functional Behavior Assessments (FBAs) work to identify the cause of challenging behavior in children with an Autism Spectrum Disorder (ASD). The ultimate goal is to identify the reasons for a behavior and then find a solution. FBAs use three main methods: indirect, observational (direct), and Functional Analysis (FA).

What is borderline autism? ›

“This category should be used when there is severe and pervasive impairment in the development of reciprocal social interaction associated with impairment in either verbal or nonverbal communication skills or with the presence of stereotyped behavior, interests, and activities, but the criteria are not met for a ...

What are the uncommon symptoms of autism? ›

While the exact cause isn't known, children with ASD experience stomach or bowel issues more frequently than other kids. These types of symptoms might include stomach cramps, nausea, constipation, and chronic diarrhea, which can make their attempts to socialize even more challenging.

What is the mildest form of autism? ›

Asperger's Syndrome is the mildest form of autism and is closely associated with level one of ASD.

Does Asperger's cause anxiety? ›

When someone has an Autism Spectrum Disorder (ASD) such as Asperger's syndrome, they will experience far greater anxiety in their daily life than the vast majority of people.

What are three conditions that often accompany autism? ›

Language delay, speech disorder and developmental language disorder. Motor difficulties. Obsessive compulsive disorder (OCD) Seizures and epilepsy.

What is the best test for autism? ›

Diagnostic Tools
  • Autism Diagnosis Interview – Revised (ADI-R) A clinical diagnostic instrument for assessing autism in children and adults. ...
  • Autism Diagnostic Observation Schedule – Generic (ADOS-G) ...
  • Childhood Autism Rating Scale (CARS) ...
  • Gilliam Autism Rating Scale – Second Edition (GARS-2)

Can you develop autism from trauma? ›

Autism is a genetic neurodevelopmental disorder that is not caused by childhood trauma or abuse. Again: child abuse is not the cause of autism.

Is high-functioning autism a mental health condition? ›

Adolescents and adults with an autism spectrum disorder (ASD) who do not have an intellectual impairment or disability (ID), described here as individuals with high-functioning autism spectrum disorder (HFASD), represent a complex and underserved psychiatric population.

How can you tell the difference between anxiety and autism? ›

People with social anxiety have an intense fear of social situations, often fearing others' judgment. People with autism often have difficulty reading social cues. Interventions can include social skills training, occupational therapy, and cognitive behavioral therapy.

How do I stop autism anxiety? ›

  1. What you can do about anxiety.
  2. See your doctor. Autistic people tell us that going to the doctor can be stressful because they feel that health professionals do not understand their needs. ...
  3. Talking therapy. ...
  4. Try the Molehill Mountain app. ...
  5. Medication. ...
  6. Try mindfulness. ...
  7. Keep a diary. ...
  8. Support groups.

What type of school is best for high-functioning autism? ›

Private schools may offer small classes, individualized attention, and terrific resources. This may be a good option for an autistic student who is extremely high functioning and socially competent.

What mental illness is associated with autism? ›

Mental health conditions.

Children with autism can also develop mental health conditions such as Anxiety Disorders, Attention Deficit Hyperactivity Disorder (ADHD) or Depression. Research shows that children with ASC are at higher risk for some mental health conditions than children without autism.

Is my child autistic or just anxious? ›

People with social anxiety are likelier to talk in a timid voice and stand far from others. Autistic people (who aren't masking) may be less aware of typical neurotypical social expectations and stand too close to people (Cuncic, 2021). Note that Autistic people tend to either: stand too close to people or.

Do anxiety meds help autism? ›

Among high-functioning individuals, they may be particularly effective when combined with cognitive behavioral therapy. However, some doctors report that anti-anxiety medications seem to be less effective overall in people with autism spectrum disorder than they are in the general population.

How do you know if you are mildly autistic? ›

Main signs of autism

finding it hard to understand what others are thinking or feeling. getting very anxious about social situations. finding it hard to make friends or preferring to be on your own. seeming blunt, rude or not interested in others without meaning to.

Do autistic kids have anxiety? ›

Autistic children experience higher levels of anxiety than their peers. Making appropriate diagnoses of anxiety disorders and providing effective treatment for these children is particularly difficult. Inconsistent evidence suggests that levels of anxiety in autistic children are related to intellectual functioning.

Can an autistic child be attached to parent? ›

It is thought that autistic children do not form attachments to parents or caregivers because of their difficulties in social interaction. Yet, the findings of the studies demonstrate evidences for the existence of attachment between autistic children and their caregivers.

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