Is It ADHD or Anxiety? How to Tell the Difference

Here’s the honest, direct answer: it might be either one, and there’s a real chance it’s both. Research puts the overlap between adult ADHD and anxiety disorders somewhere between 47 and 56 percent — meaning roughly half of adults with ADHD are also living with a diagnosable anxiety disorder. That’s not a coincidence, and it’s not a diagnostic failure. It’s simply how often these two conditions travel together. Let’s sort out what’s actually happening in your case.

Why They Get Confused So Easily

ADHD and anxiety share a long list of surface symptoms. Both can produce trouble concentrating. Both can produce restlessness. Both can produce racing thoughts, procrastination, and a body that feels keyed up even when nothing urgent is happening. If you only look at the outward behavior, the two can be almost indistinguishable — which is exactly why so many people spend years searching this question without a clear answer.

Researchers examining a widely used adult ADHD screening tool, the ASRS-v1.1, found this overlap significant enough to raise a real concern: the scale sometimes picks up general anxiety and distress rather than ADHD specifically, particularly in people who don’t have a childhood history of the disorder. In other words, even the tools built to catch ADHD can be fooled by anxiety wearing ADHD’s clothes.

Where They Actually Differ

The surface symptoms overlap. The origin underneath them doesn’t.

ADHD is, at its root, a difficulty regulating attention itself — where it goes, how long it stays, and how well it can be redirected on purpose. The distraction is the primary event. Someone with ADHD can be fully relaxed, with nothing on their mind to worry about, and still lose track of a conversation or a task.

Anxiety produces distraction as a side effect of something else: worry. The mind isn’t wandering because attention itself is poorly regulated — it’s being actively hijacked by a threat, real or perceived, that it can’t stop scanning for. Take away the worry, and the concentration problem often eases with it.

There’s a second useful marker: timing. ADHD symptoms trace back to childhood, even if nobody named them at the time. Research following adults who seek an ADHD diagnosis without a childhood history found this group tends to have significantly higher anxiety and lower actual functional impairment — a pattern more consistent with anxiety or perfectionism driving the concern than a lifelong attention disorder. If your struggles with focus started clearly in adulthood, tied to a specific season of stress, that points toward anxiety. If you can trace the same pattern back to being nine years old, staring out a classroom window, that points toward ADHD.

Can You Have Both? Yes — More Often Than Not

This is worth saying plainly: having both isn’t rare, and it isn’t a sign that someone did the assessment wrong. It’s closer to the expected outcome. Roughly half of adults with ADHD carry a comorbid anxiety diagnosis, and the relationship often runs in both directions — the daily friction of undiagnosed ADHD (missed deadlines, forgotten commitments, chronic lateness) generates real anxiety over time, while anxiety’s hijacking of attention can look enough like ADHD to complicate the picture further. Comorbidity also tends to increase overall symptom burden and can make each condition harder to treat in isolation, which is exactly why an accurate diagnosis matters rather than a guess from either direction.

What to Do From Here

• Don’t try to answer this from a symptom list, including this one. A trained clinician can trace the origin and timeline of your symptoms in a way a checklist can’t.
• Take both free self-report screeners on this site — not just one. Since this whole question is about telling ADHD and anxiety apart, the ASRS v1.1 and the GAD-7 together give a fuller picture than either alone, and a real head start for whoever evaluates you next.
• Bring your childhood to the conversation. Old report cards, a parent’s memory, or your own recollections of school-age struggles are genuinely useful diagnostic information.
• Notice what happens to your focus when the worry lifts. A vacation, a resolved conflict, a calm week — if concentration improves dramatically, anxiety is likely playing a bigger role than you’ve assumed.
• Expect the possibility of both, and don’t be discouraged if that’s the answer. Treating both conditions together, rather than chasing one at a time, usually produces the better outcome.
• If medication becomes part of the plan, that conversation belongs with your doctor, since the right treatment differs meaningfully depending on which condition, or combination, is actually driving your symptoms.

The Door Is Open

Whichever this turns out to be — ADHD, anxiety, or both — you’re not imagining the struggle, and you’re not failing to manage something that should be simple. Something real is happening in your brain, and it has a name, even if it takes an evaluation to find the right one.

The door is open. We just need the right map to walk through it together.