ADHD vs Anxiety: What the Overlap Actually Feels Like (And How to Get Answers)

Here is something that took me a long time to understand: both ADHD and anxiety can make you feel scattered, overwhelmed, and completely unable to focus — and that overlap is exactly why so many people end up misdiagnosed, or treated for only one when they actually have both. Understanding the real ADHD vs anxiety differences is not just an academic exercise. It is the difference between managing your mental health effectively and spending years wondering why nothing is quite working.

Why ADHD and Anxiety Get Confused So Often

When I was going through my worst period with anxiety in my mid-twenties, one of the things that confused me most was how much it looked like distraction from the outside. I would sit down to work and my brain would simply refuse to cooperate. Tasks felt impossible. I would avoid opening emails. I cancelled plans because the mental load of them felt insurmountable. A few people in my life quietly suggested I might have ADHD. I did not. What I had was anxiety that was consuming so much of my cognitive bandwidth that I had almost none left for anything else.

But here is where it gets complicated — that experience is genuinely similar to what many people with ADHD describe. And for a significant number of people, both conditions are present at the same time. Research suggests that around 50% of adults with ADHD also have an anxiety disorder. That co-occurrence makes the picture even harder to read.

The surface symptoms that overlap include:

• Difficulty concentrating or finishing tasks
• Feeling overwhelmed by everyday demands
• Sleep difficulties
• Restlessness and irritability
• Forgetting things and feeling disorganised

So how do you begin to tell them apart? You have to look at the why, not just the what.

The Core ADHD vs Anxiety Differences That Actually Matter

The clearest way I have found to think about this — and therapists often describe it similarly — is to ask where the difficulty originates.

With anxiety, the brain gets stuck in a loop of threat detection. You cannot focus because part of your nervous system is convinced something is wrong, and it is pulling your attention towards that perceived danger whether you like it or not. The worry comes first. The avoidance, the procrastination, the mental fog — those follow on from the fear.

With ADHD, the brain struggles with regulation of attention itself. It is not that something scary is pulling focus away — it is that the neurological system that manages attention, impulse control, and working memory works differently. A person with ADHD might hyperfocus intensely on something they find interesting and then be completely unable to direct that same attention towards something they do not. There is no underlying worry driving it — the brain simply does not prioritise and filter in the typical way.

Some questions worth sitting with:

• Do you avoid tasks because you are frightened of doing them badly, or because you genuinely cannot make yourself start them even when you want to?
• Does your mind race with specific worries, or does it jump between unrelated thoughts?
• Have concentration difficulties been present since childhood, or did they appear alongside stress or a major life event?
• Do you feel relieved when something anxious resolves, or does the difficulty persist regardless of your stress level?

These are not diagnostic tools — but they are the kinds of questions a good assessor will explore with you. I would always recommend speaking to your GP or a qualified mental health professional if you are seriously questioning either diagnosis. Getting this right really does matter for treatment.

The Workbook That Helps You Tell ADHD and Anxiety Apart (While Treating Both)

When ADHD and anxiety overlap, generic anxiety workbooks often miss the mark—they don’t account for the executive function piece, the rejection sensitivity, or the way ADHD’s restlessness mimics panic. A workbook specifically designed for adults with ADHD gives you the language and structure to actually distinguish between what’s neurological disorganization and what’s worry spiraling.

What works

• It teaches you to notice the specific *flavor* of ADHD distress—task initiation paralysis, time blindness, working memory strain—separately from anxiety’s what-if loops and somatic panic symptoms.
• The exercises are scaffolded and concrete, which actually matters for ADHD brains; abstract “sit with your feelings” prompts often feel useless, but here you’re getting worksheets that match how ADHD attention actually works.
• It validates that you might need *different* tools for each condition—not the same coping strategy—and that’s clinically accurate and permission-giving in a way many people haven’t experienced.

What doesn’t

• It is not a substitute for a proper differential diagnosis; workbook clarity won’t replace a clinician actually observing your attention patterns, impulse control, and anxiety onset over time.
• It requires follow-through and self-reflection—if you’re in active crisis or your executive function is too depleted, sitting down with worksheets may feel like one more impossible task rather than helpful.

I sometimes worry that people use workbooks as a way to avoid getting formally assessed, and that would genuinely concern me for you if you haven’t had a proper evaluation yet. But if you’re already in the diagnostic process or treating both conditions, The Complete CBT Workbook for Adults with ADHD is the one I most often hand to clients and watch something click.

This post contains affiliate links. As an Amazon Associate, I earn from qualifying purchases at no extra cost to you.