Anxiety & ADHD:

Understanding the Overlap

If you live with constant worry, racing thoughts or difficulty focusing, you might wonder whether the cause is anxiety, ADHD, or both.

Because these conditions share similar symptoms, ADHD is often overlooked or mistaken for anxiety – something a structured ADHD assessment can help clarify.

ADHD Assessment

Our clinicians offer flexible assessment options to suit your schedule and preferences.

What’s the link Between ADHD & Anxiety

ADHD and anxiety frequently occur together. Many people with ADHD experience ongoing worry, physical tension or a sense of dread that can meet the criteria for an anxiety disorder.

Difficulties with attention, organisation and emotional regulation can create repeated stress in daily life, which may contribute to anxiety developing over time.

Anxiety disorders are among the most common conditions seen alongside ADHD, with research suggesting anxiety may present in approximately 47–56% of people with ADHD.

ADHD & Anxiety Symptoms

Many people recognise aspects of both ADHD-related difficulties and anxiety-related feelings. The information below highlights common patterns to help you spot patterns, not to diagnose yourself.

Note: While some symptoms overlap, ADHD and anxiety often affect attention, behaviour and emotional responses in different ways.

What anxiety can feel like

Constant worry and “what if?” thoughts
A sense of dread or something bad about to happen
Racing heart, tense muscles, upset stomach, shaking
Difficulty relaxing or getting to sleep
Difficulty switching off thoughts or relaxing mentally

How to know if it’s ADHD & Anxiety

Difficulties with focus, communication, and social interaction can arise from ADHD, autism, or a combination of both

ADHD

With ADHD, attention difficulties usually begin earlier in life and tend to affect multiple areas such as work, education, relationships or daily organisation.

Anxiety

With Anxiety, concentration often becomes harder during periods of worry, stress or perceived pressure, and may improve once anxiety levels reduce.

Symptom / Behavior

ADHD symptoms

Anxiety symptoms

Difficulty concentrating or paying attention

Trouble completing tasks

Forgetfulness

Distractedness

Inability to relax or feelings of restlessness

Fidgeting or difficulty sitting still

Impatience, such as difficulty waiting or interrupting people

Symptoms of panic such as rapid heart rate, rapid breathing, or

Difficulty listening to and following instructions

Inability to focus for long periods of time

Chronic feelings of worry or nervousness

Fear without an obvious cause

Irritability

Trouble sleeping or insomnia

Headaches and stomachaches

Difficulty with executive function

Becasue anxiety and ADHD influence attention in different ways, distinguihing between them often depends on understanding long term patterns rather than individual symptoms.

The primary differences often lie in the underlying motivation for certain behaviours. While ADHD is fundamentally linked to difficulties with impulse control and consistent attention, Autism Spectrum Disorder involves a unique way of managing social communication and a preference for predictable patterns. Understanding whether a challenge is driven by a need for stimulation or a need for routine is a key part of a clinical evaluation.

It is possible to meet criteria for both ADHD and autism, and a specialist assessment is the safest way to untangle these long-term patterns and plan support.

Why ADHD & Anxiety Are Often Missed

ADHD and anxiety rarely look like the “hyperactive child” stereotype in adults. Many people learn to hide the struggle by over-preparing, working late and using endless reminders, so from the outside they seem capable while feeling constantly behind inside.

When you also have anxiety or low mood, professionals can easily focus on those first and not ask about the lifelong pattern of focus, organisation and impulsivity. That’s why so many adults reach assessment feeling unseen and doubting themselves.

Why ADHD and Anxiety Can Be Difficult to Distinguish

What an ADHD assessment usually involves

How to Treat ADHD and Anxiety

Treatment plans for ADHD and anxiety are individual. Clinicians usually look at which symptoms are causing you most difficulty and may focus there first, or work on both together using a mix of medication and talking therapies.

Treatment options for ADHD

Support for ADHD can include stimulant or non-stimulant medication, psychoeducation, and practical strategies for organisation, time-management and planning.

Some people also benefit from coaching or CBT that is adapted to ADHD and focuses on building daily routines and managing impulsivity.

Treatment options for anxiety

Anxiety is commonly treated with psychological therapies such as cognitive behavioural therapy (CBT).

Where appropriate, a GP or mental health team may also offer medication such as SSRIs, alongside lifestyle support around sleep, stress and physical health.

Approaches that can help both

Some tools can ease both ADHD and anxiety at the same time, for example CBT, learning to break tasks into smaller steps, using structured planners, improving sleep, regular physical activity and reducing alcohol.

Following assessment, a clinician can explain which approaches may be most helpful and discuss appropriate next steps.

Daily life impact

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ADHD and anxiety together can make everyday life feel like constant firefighting. At work or in your studies, that might look like missed deadlines, last-minute rushing, performance nerves and a nagging fear you’ll be “found out” as less capable. At home, lateness and forgetfulness can be read as not caring, which can lead to arguments or you pulling away because you feel overwhelmed.

Over time, many people start to feel they are always “under-achieving” despite how hard they try, and that can slide into burnout. Small changes will not replace assessment or treatment, but they can make daily life a bit easier – for example keeping one central to-do list, using clear visual reminders for key tasks, and breaking larger jobs into smaller, manageable steps.

Support for ADHD and anxiety

You do not need a GP referral to contact us for an ADHD assessment. If you prefer, you can still speak to your GP, who can check for other causes and explain local NHS options available to you.

ADHD assessment and clinical support

Support for ADHD can include stimulant or non-stimulant medication, psychoeducation, and practical strategies for organisation, time-management and planning.

Additional sources of support

Constant worry and “what if?” thoughts
A sense of dread or something bad about to happen
Racing heart, tense muscles, upset stomach, shaking
Difficulty relaxing or getting to sleep
Difficulty switching off thoughts or relaxing mentally

If you need urgent help

Constant worry and “what if?” thoughts
A sense of dread or something bad about to happen
Racing heart, tense muscles, upset stomach, shaking
Difficulty relaxing or getting to sleep
Difficulty switching off thoughts or relaxing mentally

Ready to Get Clarity on Your Symptoms?

Have Any Questions?

Got a question? Just reach out. We’ll get back to you as soon as we can, because your health matters, and we’re with you every step of the way.

Email us on:

info@adhdcertify.co.uk

Call us on:

020 8137 3786

Can you have both ADHD and autism?

Yes. It is very common for both conditions to occur together, a combination often informally called ‘AuDHD’. While they were once diagnosed separately, clinical guidelines now recognise that many people meet the criteria for both.

How can you tell the difference between ADHD and autism in adults?

The difference between ADHD and autism often lies in the motivation behind a behaviour. For example, an adult with ADHD might avoid a task due to a lack of stimulation, while an autistic adult might avoid it due to sensory overwhelm or a change in routine.

Is ADHD part of the autism spectrum?

Yes, ADHD can be mistaken for autism because symptoms like social challenges or sensory sensitivities overlap. A specialist assessment is necessary to determine if these traits are driven by ADHD, autism, or a combination of both.

Can ADHD be mistaken for autism?

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Do ADHD and autism look different in girls and women?

Yes, both conditions tend to present differently in girls and women. Social pressure to appear ‘normal’ often leads to masking, where a person learns to mirror others, suppress their traits, and push through difficulties in ways that hide how much effort it takes. This means struggles with focus, sensory overwhelm, or social exhaustion are often invisible to others, including teachers and doctors.

As a result, girls and women are frequently diagnosed much later than boys, or misdiagnosed6 with anxiety or depression first. If you have spent years feeling like you are working twice as hard as everyone else just to keep up, it may be worth exploring whether ADHD is part of the picture.

Who should I talk to if I’m not sure whether it’s ADHD, autism or both?

If you are unsure about ADHD and autism in your children or yourself, the first step is to speak with a qualified clinician. They can provide a professional evaluation to untangle your specific symptoms and help you access the right support for your needs.