Is It Sensory, Anxiety or OCD? Understanding When Your Child Says “I Can’t”

"She can't wear the clothes."

"She won't go into the room."

"She says everything feels wrong."

"She keeps washing."

"She knows she's safe, but she can't make herself do it."

"I don't know whether this is sensory, anxiety or OCD anymore."

If you are a parent of a child showings sensory challenges, you may have found yourself asking exactly these questions.

And when your child is also experiencing significant anxiety, obsessive-compulsive symptoms, sudden changes in behaviour or possible inflammatory or medical difficulties, it can become incredibly difficult to know what to do.

Should you encourage them through it?

Should you accommodate the sensory difficulty?

Should you challenge the avoidance?

Should you use ERP?

Should you leave them alone?

Or are you accidentally making things worse?

The answer is rarely as simple as choosing one approach.

Sometimes several things are happening at the same time.

When a child's distress doesn't fit neatly into one box

Imagine a child who suddenly refuses to wear a particular pair of trousers.

They might say:

"I can't wear them."

A parent might reasonably wonder whether this is OCD.

But what if the trousers genuinely feel painful against their skin?

Or what if the fabric feels unbearable because their sensory system is already overwhelmed?

Or what if the sensation triggers an anxious thought?

Or what if the child thinks:

"Something is wrong."

"I feel contaminated."

"I have to get these clothes off."

And then changes their clothes repeatedly.

The behaviour may look like avoidance.

But the reason underneath the avoidance matters.

This is why I believe it is important to become curious about the experience before deciding what intervention is needed.

The Body → Brain → Alarm → Action Model

One way I explore these experiences with children is to think about four stages.

1. What did your BODY notice?

Was something:

• scratchy?

• painful?

• tight?

• hot?

• sticky?

• overwhelming?

• unfamiliar?

• visually different?

• unexpectedly touching the body?

  
  

Sensory experiences are real experiences.

For many children sensory differences can have a significant impact on everyday participation. NICE guidance recommends considering sensory and environmental factors when understanding distress and behaviour in autistic children and young people, however sensory challenges are not

2. What did your BRAIN say?

Perhaps:

"I don't like this."

"Something feels wrong."

"This isn't how it normally feels."

"I can't cope."

3. What did the ALARM predict?

Perhaps:

"Something bad is going to happen."

"I'm going to be sick."

"I'm contaminated."

"I can't go in there."

"I have to get away."

4. What did you then feel you HAD TO DO?

Perhaps:

• remove the clothes

• wash

• check

• ask Mum

• avoid the room

• seek reassurance

• repeat something

• escape

This final part is particularly important when we are considering OCD.

When might sensory discomfort be involved?

A sensory difficulty is not simply a child being "fussy" or "difficult".

For some children, the physical experience itself is genuinely overwhelming.

A seam may feel intensely irritating.

A particular noise may feel physically painful.

A change to a familiar room may make the environment feel unexpectedly unfamiliar.

A smell may be impossible to ignore.

A texture may create an intense urge to escape.

In these situations, the therapeutic question should not automatically be:

"How can we make them tolerate this?"

Instead, it may be:

"What is their sensory system telling us, and what adaptations might help?"

Sometimes the right intervention is accommodation.

Sometimes it is environmental change.

Sometimes an occupational therapy assessment may be helpful.

Sometimes it may be helping the child understand their sensory profile.

And sometimes, once the sensory need has been understood and supported, there is still an anxiety or OCD cycle that needs addressing.

When might OCD be involved?

OCD can look very different in children.

Sometimes there is a clear fear:

"If I touch that, I will get contaminated."

But sometimes it is much less obvious.

A child may simply experience:

"It feels wrong."

And then feel compelled to do something until the feeling goes away.

For example:

Sensation → alarm → "wrong" feeling → compulsion → temporary relief

The compulsion might be:

• washing

• changing clothes

• checking

• repeating

• asking for reassurance

• avoiding

• seeking certainty

In these situations, Exposure and Response Prevention (ERP) and Acceptance and Commitment Therapy (ACT) are evidence-based treatments for childhood OCD and should be adapted to the child's developmental needs and delivered with family involvement where appropriate.

But importantly, ERP/ACT should target the OCD cycle.

It should not simply mean making a child tolerate something that is genuinely painful or overwhelming from a sensory perspective.

What if it is both?

This is where things become more complicated.

A child might experience:

Sensory discomfort

↓

"I hate this feeling."

↓

Anxiety

↓

"Something is wrong."

↓

OCD

↓

"I have to wash/change/escape."

↓

Temporary relief

↓

The brain learns:

"Good thing we escaped."

And the cycle becomes stronger.

This is why sensory needs and OCD sometimes need to be considered together rather than treated as competing explanations.

Does ACT mean teaching children to tolerate everything?

No.

This is an important distinction.

Acceptance and Commitment Therapy is not about teaching a child to ignore their body or suppress their needs.

The aim is psychological flexibility.

That means helping a young person learn:

"I can listen to my body."

"I can notice what my brain is telling me."

"I can recognise when anxiety or OCD is making demands."

"I can make choices based on what matters to me."

Sometimes that choice is:

"I need a different fabric."

Sometimes it is:

"I need some quiet."

Sometimes it is:

"I am going to leave this situation."

And sometimes it is:

"This is uncomfortable, but OCD is asking me to do something I don't actually need to do, and I'm going to choose differently."

The goal is not compliance.

The goal is choice.

What about possible PANS or PANDAS?

Some parents seek support when their child's OCD, anxiety, tics, eating difficulties or sensory experiences have changed very suddenly.

If there has been a marked or acute change in a child's neuropsychiatric presentation, it is reasonable for parents to discuss this with appropriate medical professionals.

Treatment of PANS and PANDAS remain areas of ongoing scientific research.

This does not mean that a child's symptoms should be dismissed.

It means that medical investigation and psychological support can happen alongside one another.

Consensus guidance on PANS/PANDAS recommends addressing psychiatric and behavioural symptoms alongside investigation and management of possible underlying medical factors and root causes.

So if your child is undergoing medical investigation, psychological support does not necessarily have to wait.

Equally, psychological support should not be used to explain away symptoms that warrant medical assessment.

A thoughtful approach holds both possibilities.

What should parents do when they aren't sure?

You don't need to diagnose the behaviour yourself.

Instead, start becoming a detective.

Ask:

"What happened just before?"

Was there:

• a change?

• sensory overload?

• tiredness?

• hunger?

• uncertainty?

• social stress?

• illness?

• a transition?

  
  

"What did my child's body experience?"

Was there genuine discomfort?

"What did their brain make it mean?"

Did the experience become associated with danger, contamination, illness or something being "wrong"?

"What did they feel they had to do?"

Was there a compulsion?

"What happened afterwards?"

Did the behaviour provide temporary relief?

This information can be incredibly helpful when speaking with psychologists, therapists, occupational therapists, paediatricians or other professionals.

You don't have to choose between compassion and progress

One of the biggest worries parents sometimes have is:

"If I accommodate this, am I making the anxiety worse?"

Or:

"If I challenge it, am I making my child mask their experience ?"

These are important questions.

But there is another possibility.

We can ask:

"What does this child genuinely need, and what is anxiety or OCD asking for?"

That allows us to support the child without automatically reinforcing avoidance.

We can respect sensory needs without allowing OCD to run the whole household.

We can encourage brave steps without asking a child to ignore genuine physical discomfort.

And we can help children develop flexibility without teaching them that being neurodivergent is something they need to hide.

When might therapeutic support be helpful?

You might consider seeking specialist support if your child's difficulties are beginning to affect:

• getting dressed

• eating

• sleeping

• attending school

• leaving the house

• friendships

• family life

• personal care

• participation in activities they previously enjoyed

• confidence or independence

You don't need to know whether the problem is "definitely OCD" or "definitely sensory" before asking for help.

Part of specialist assessment and formulation is understanding what might be happening underneath the behaviour.

At The Little Bird House, we work with children, young people and families experiencing anxiety, OCD, sensory and emotional regulation difficulties, school attendance difficulties and neurodevelopmental differences.

Our approach is integrative, drawing on ACT, ERP, SPACE, creative therapeutic approaches and nervous-system-informed practice.

Where appropriate, I also work alongside other professionals and encourage families to seek appropriate medical or occupational therapy assessment when physical, sensory or neurodevelopmental factors may be contributing.

The aim is not simply to make a child "cope".

It is to help them understand themselves, feel safer in their bodies, develop choice and flexibility, and gradually build a life that feels possible.

Sometimes the most helpful question isn't:

"How do we make them stop doing this?"

It is:

"What is this behaviour telling us?"

And once we understand the message, we can begin to work out what the child actually needs.