Anxiety in children: body signs
The physical symptoms that are often anxiety in disguise — tummy aches, headaches, sleep issues, appetite shifts. How to tell, and what helps.
Childhood anxiety often arrives through the body before it arrives through words. A child who cannot name what they are feeling will still feel it — in their stomach, their head, their sleep. If the doctor cannot find anything, this page is for you.
The body signals worth knowing
- Recurrent tummy aches, often around the navel, usually worse in the morning before school and settling on weekends.
- Headaches that come and go, unrelated to hydration or eyesight.
- Nausea or loss of appetite in specific situations (before school, before sleep, before a specific event).
- Difficulty falling asleep — lying awake with racing thoughts; 'I can't sleep' without a named reason.
- Frequent waking or early-morning rising.
- Needing to pass urine frequently without a urinary tract infection.
- Chest tightness or shortness of breath with no respiratory illness.
- A marked change in energy — either withdrawal or agitation.
Why the body shows anxiety first
The autonomic nervous system and the gut-brain axis are tightly linked. When a child's threat system activates, their gut is one of the first places the shift shows up. The child feels a real, physical pain — it is not made up, it is not attention-seeking, it is the physical expression of a brain state they do not yet have the vocabulary to name.
How to tell whether it is anxiety — and not something medical
The first step is always a medical review. Recurrent tummy aches, headaches, or other symptoms always warrant a GP visit to rule out physical causes.
Once a medical cause has been reasonably ruled out, the pattern to look for is situational. A tummy ache that appears on Sunday evening and Monday morning but is absent on Saturday is telling you something about Mondays. A headache that appears before a test and settles after is telling you something about tests.
Listen for what comes up around the body-state. Not 'what's wrong with your tummy' — you already know. 'What's on your mind today?' 'Anything you're not looking forward to?'
What helps
- Validate the physical feeling. 'Your tummy really hurts. That's hard.' Do not argue with the sensation.
- Name the possibility. 'Sometimes our tummy aches when we have big feelings. Is there anything your tummy might be worried about today?' Gentle, not forced.
- Hold the line on the thing being avoided — usually school. Staying home creates a short-term relief that strengthens the avoidance pattern.
- Build a small predictable morning routine. Anxiety hates novelty; structure is calming.
- Teach the body a regulating skill — three long exhales, a hand on the belly, a minute of cold water on the wrists. These are evidence-based, not wellness trinkets.
When to seek a psychologist
- Symptoms are recurrent over more than a month.
- School attendance is being affected.
- The child cannot name what they are worried about, but the body is clearly activated.
- You have tried the steady steady steady approach and the pattern is not easing.
- Your instinct is that something specific is going on and the child cannot say what.
In Australia, a GP Mental Health Care Plan unlocks up to ten subsidised psychology sessions a year. CBT — cognitive behavioural therapy — is the evidence-based first-line treatment for childhood anxiety. It works. Do not wait six months to access it because it sounds clinical.
Questions we hear a lot.
Should I keep them home if they're in pain?
If you have seen this pattern before and it reliably resolves on weekends or holidays, the guidance is usually to go to school — gently, with the pain acknowledged. Keeping a child home cements the avoidance. Acknowledge the body. Hold the line. Talk about what might be underneath, later in the day.
What is CBT?
Cognitive behavioural therapy. Structured, time-limited, evidence-based therapy that teaches a child to notice their thoughts, recognise anxiety's shape, and build practical tools to respond. For children, it usually involves play, drawing, and family sessions. Not a long-term therapy — 10–16 sessions typically produces meaningful change.
If this was useful.
Written by Seen Editorial · Editorial board
Reviewed by Dr. Olivia Hart · Child and adolescent psychiatrist (Sydney)
Last reviewed 2026-04-19. Reviewed annually or sooner if Australian guidance changes.
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