Imagine this: your child wakes up every Monday morning with a heavy feeling in their stomach, refuses to get ready for school, or suddenly bursts into tears before a birthday party or social event. You ask gently, "Are you feeling anxious?" and they look at you with confusion, saying, "I don't know." This silence isn’t about defiance or drama; it’s about a hidden struggle to understand and express what’s happening inside their body and mind.
Anxiety in children often hides behind physical symptoms and behaviors rather than words. Many children, especially those with autism, ADHD, or sensory processing differences, find it hard to recognize or label their anxiety because they can’t interpret their body’s internal signals. This skill, called interoception, is like an internal GPS that helps us navigate our feelings. When it’s impaired or still developing, anxiety can feel like an invisible, confusing force.
Understanding why your child struggles to tell whether they are anxious is the first step toward helping them feel safe, understood, and supported. It’s about learning a new language—the language of the body and emotions—and teaching your child to listen to their own internal signals. With patience and the right strategies, children can develop emotional awareness and coping skills that empower them to manage anxiety and thrive.
Key Points
- Many children struggle to recognize anxiety because they can’t interpret their body’s internal signals, a skill called interoception.
- Anxiety often shows up as physical symptoms or behaviors rather than words, especially in young children or those with autism and ADHD.
- Early recognition and support can prevent anxiety from disrupting daily life and help children build emotional awareness and coping skills.
Quick answer: Why can't my child tell when they feel anxious?
Many children, especially those with autism, ADHD, or sensory processing differences, have genuine difficulty noticing the internal signals - like a racing heart, dry mouth, or tight chest - that flag a child's anxiety. This difficulty is rooted in something called interoception: the brain's ability to sense and interpret what is happening inside the body. Children can experience anxiety without being able to recognize or name it as anxiety, and they may lack the ability to connect their physical sensations with their emotional state. This is a normal part of development, not defiance, and the good news is that these skills can be taught and improved.
Understanding why your child can't feel their anxiety: Interoception explained
Interoception is your brain's ability to notice internal signals - your heartbeat speeding up, your breathing getting shallow, butterflies in your stomach, or your mouth going dry. Think of it as your body's internal weather report.
Here is a practical example: many children do not realize they are hungry until someone puts food in front of them, or they only notice thirst when offered a drink rather than from the feeling of a dry mouth. The same thing happens with anxiety. A child might not identify that tight-chest, fast-breathing feeling as worry until they are already crying or refusing to walk through the school gate.
Kids often feel anxiety in their bodies first before recognizing the emotional experience, and children often process emotions through physical symptoms rather than verbal reflection. Interoception develops gradually from infancy through around age 10–12 as neural systems mature. Young children typically think concretely, limiting their ability to grasp abstract emotions, and they lack the abstract thinking required to connect internal feelings with anxiety. Recognizing anxiety typically requires self-reflection and emotional literacy, which younger children may lack.
On top of developmental timing, emotional vocabulary is still developing in children, making it hard to label feelings accurately. Children lack the vocabulary needed to differentiate between being mad, scared, tired, or anxious. So instead of saying "I feel anxious," you hear "my tummy hurts" or "I feel weird."
Research since around 2015 has linked interoception differences with autism, ADHD, trauma histories, and emotional regulation difficulties. A 2022 study found that children with ASD - with or without ADHD - scored significantly lower on heartbeat-tracking tasks compared to typically developing peers, and that reduced interoceptive accuracy correlated with more anxiety symptoms.
Is this normal worry or an anxiety disorder? A brief guide for parents
Most children feel anxious sometimes. Children often feel anxious about new situations like starting school, visiting the doctor, or watching a scary movie. This is a natural reaction to uncertainty.
Anxiety becomes a problem when it disrupts daily life - when the worry is so intense, frequent, or long-lasting that it interferes with school, friendships, or a child's life at home. Anxiety can interfere with a child's daily life and self-esteem. Common anxiety disorders in children include:
- Separation anxiety - distress when apart from caregivers, common in children aged 6 months to 3 years but problematic when it persists
- Generalized anxiety disorder - worry about many different things (health, school, family) most days
- Social anxiety - intense fear of social situations, being judged, or speaking up
- Panic disorder - sudden episodes of racing heart, shaking, or nausea with no medical cause
- Specific phobias - extreme fear of particular objects or situations
A child anxious all the time may become numb to the signals, saying "I'm fine" while their body stays very tense. About 40% of autistic adolescents experience at least one anxiety disorder. Anxiety disorders in children can lead to depression if untreated, making early recognition critical.
When should you suspect an anxiety disorder? Consider seeking help when:
- Your child refuses school for weeks, not just an occasional reluctant morning
- Frequent unexplained stomachaches or headaches persist for more than a week
- Trouble sleeping happens most nights, especially before social events
- Panic-like symptoms (fast heartbeat, shaking, difficulty breathing) appear with no medical cause
Persistent anxiety in children may require discussion with a pediatrician or mental health professional. Only a qualified professional can diagnose anxiety disorders.
Why your child struggles to notice anxiety in their body
Interoception differences are one piece of a larger puzzle. Several factors overlap to keep a child from recognizing their own anxiety.
Sensory and neurodevelopmental factors. In autism, the brain may process internal signals differently - some children experience body cues as overwhelmingly loud, others as barely a whisper. ADHD can reduce the ability to slow down and attend to subtle sensations. A systematic review of interoception in ADHD populations found diminished interoceptive awareness across both objective and subjective measures.
Chronic stress and habituation. When childhood anxiety is long-standing, the body adapts. A child who has been stressed for months may tune out the constant tension, the way you stop noticing background noise. Physical symptoms of anxiety can overshadow the emotional aspects for children, making the whole experience confusing. When deeply anxious, a child's ability to reason or reflect on emotions becomes impaired.
Cognitive and language factors. Limited emotional vocabulary, communication delays, or intellectual disability can make it nearly impossible to connect "heart racing + worrying thoughts = I feel anxious." Adults with full language still struggle with this; for children, the gap is even wider.
Learned patterns and family influences. Anxiety can be influenced by genetics and family history. If family members avoid discussing feelings, or if adults quickly reassure or distract before a child can notice what is happening in their body, the child loses practice. Accommodating anxious behaviors can reinforce anxiety in children. Children may also develop anxiety after traumatic experiences like accidents or bullying. Often, multiple factors overlap - for example, an autistic child with sensory needs and a past history of school stress.
What does anxiety look like when a child can't feel it? Signs to watch for
An anxious child who cannot identify their feelings will show anxiety through behavior or physical complaints rather than words like "I'm worried." Children often struggle to recognize anxiety as it shows up differently than adult expectations.
Physical signs:
- Stomachaches, headaches, or tight muscles - anxiety often manifests as these rather than a psychological thought
- Anxiety can often be misinterpreted as physical illness like tummy aches or headaches
- Nausea, dry mouth, rapid breathing, and elevated heart rate
- Frequent toilet trips, trouble sleeping, or changes in appetite
- Symptoms that spike before school, tests, or social situations
Behavioral signs:
- Children may express anxiety through behaviors such as irritability, withdrawal, or avoidance
- Children may show anxiety through irritability and temper tantrums
- Avoidance of activities peers enjoy is a sign of anxiety
- Clinginess, constant reassurance-seeking ("Will you stay with me?"), perfectionism with homework
Emotional and cognitive clues:
- "I feel weird," "I don't know what's wrong"
- Repeating scary "what if" questions
- Rigid routines to feel safe, difficulty with transitions
Age differences matter. Preschoolers may tantrum or regress. Older
Frequently Asked Questions (FAQ)
What is interoception and why is it important for anxiety?
Interoception is the brain's ability to sense and interpret signals from inside the body, such as a racing heart or stomach butterflies. It helps us recognize emotions like anxiety by connecting physical sensations to feelings.
Can children with autism or ADHD learn to recognize their anxiety?
Yes, children with autism or ADHD often have interoception differences but can learn to identify and manage anxiety with support and training.
How can parents help a child who can't express their anxiety?
Parents can use visual aids, emotion charts, and teach coping strategies to help children recognize and communicate their feelings.
When should I seek professional help for my child's anxiety?
If anxiety disrupts daily life for several months, causes school refusal, or physical symptoms persist, consult a pediatrician or mental health professional.
Are there effective treatments for childhood anxiety?
Cognitive behavioral therapy (CBT) and medications like SSRIs are effective treatments. Parent involvement and supportive environments improve outcomes.
How does anxiety affect a child's behavior?
Anxiety may cause irritability, withdrawal, avoidance, tantrums, clinginess, or physical complaints like stomachaches.
Original content from the Upbility writing team. Reproducing this article, in whole or in part, without credit to the publisher is prohibited.
References
- Silverman, W.K., & Lebowitz, E.R. (2024). Childhood anxiety disorders and treatments. Yale Medicine.
- Williams, Z.J., et al. (2023). Characterizing Interoceptive Differences in Autism: A Systematic Review and Meta-analysis. Journal of Autism and Developmental Disorders.
- Upbility. (2023). Online Course: Interoception in Action - Self-Regulation, Sensory Processing & Behavior in Children. https://upbility.net/collections/online-courses/products/online-course-interoception-in-action-self-regulation-sensory-processing-behavior-in-children
- NHS. (2023). Anxiety in children. https://www.nhs.uk/mental-health/children-and-young-adults/advice-for-parents/anxiety-in-children
- Cleveland Clinic. (2023). Anxiety in children: Causes and treatments. https://my.clevelandclinic.org/health/diseases/anxiety-in-children
