ADHD and Anxiety: When Both Show Up Together

How common is the overlap?

In my experience as a clinician, the ADHD-anxiety overlap is not an occasional coincidence — it is one of the most common comorbidity patterns in psychiatric practice. Research consistently shows that approximately 50% of adults with ADHD also meet criteria for an anxiety disorder. The relationship runs both directions: ADHD increases the risk of developing anxiety, and anxiety can mask ADHD symptoms for years.

Having both is not unusual. Having both and only being treated for one is — and that is where most of the suffering comes from.

Why they look the same from the outside

This is the clinical puzzle that makes evaluation so important. Both ADHD and anxiety produce:

• Difficulty concentrating
• Restlessness and the inability to sit still
• Trouble completing tasks
• Sleep problems
• Feeling overwhelmed by normal demands
• Irritability and a short fuse

From the outside, they look identical. From the inside, they feel different — but most patients don't have the clinical framework to articulate the difference. In my experience as a clinician, the distinction that matters most is the engine driving the symptom.

The difference is the engine

In my experience as a clinician, this is the most important clinical distinction I make when evaluating patients who present with concentration problems and restlessness:

• ADHD concentration problems come from insufficient dopamine — your brain can't generate enough activation to engage with the task. You're not distracted by worry. You're distracted by everything. Your brain is looking for stimulation because it isn't getting enough from the task in front of you
• Anxiety concentration problems come from an overactivated threat system — your brain is so busy scanning for danger, rehearsing worst-case scenarios, and monitoring for threats that it can't allocate resources to anything else. You're not understimulated. You're overwhelmed by internal noise

The symptom is the same. The cause is opposite. The treatment is different. Getting this wrong has real consequences — giving a stimulant to someone whose concentration problem is purely anxiety-driven is like putting gasoline on a fire. Giving only an SSRI to someone whose anxiety is driven by unmanaged ADHD is treating the smoke and ignoring the fire.

How ADHD creates anxiety

In my experience as a clinician, many adults with ADHD have developed anxiety as a direct consequence of living with unmanaged ADHD for years. The mechanisms are predictable:

• Learned expectation of failure — years of forgetting things, missing deadlines, and letting people down creates a deep, conditioned belief that something will go wrong. Because historically, it does. This isn't irrational anxiety. It is pattern recognition from a life where the ball gets dropped regularly
• Compensatory hypervigilance — the mental effort spent trying to not forget, not be late, not miss the important thing is itself an anxiety state. Many adults with ADHD are running a constant internal monitoring system that is exhausting and anxiety-producing
• Rejection sensitivity — ADHD comes with an emotional intensity that makes criticism and perceived rejection feel devastating. After years of being told you're lazy, careless, or not trying hard enough, social interactions carry a specific kind of dread
• Chronic stress of masking — the energy spent appearing normal, organized, and together when your brain is anything but creates a sustained stress response that eventually manifests as clinical anxiety

How anxiety masks ADHD

This is the scenario I see most often in my practice: someone has been treated for anxiety for years, the treatment has been partially effective, but they've never been evaluated for ADHD. The anxiety treatment helped the worry — but the disorganization, the time blindness, the inability to follow through, the executive function problems all remained. Nobody connected those to ADHD because the anxiety diagnosis was already on the chart and seemed to explain everything.

In my experience as a clinician, anxiety can also paradoxically improve ADHD functioning in ways that delay diagnosis. The adrenaline from chronic worry can temporarily sharpen focus and create urgency that mimics motivation. Some patients tell me their anxiety "helped" them get things done — which is true in the short term and devastating in the long term, because they're running on cortisol instead of dopamine, and that system eventually breaks down.

What treatment looks like when you have both

In my experience as a clinician, the treatment sequence matters significantly:

• Determine which is primary — is the anxiety driving the concentration problems, or is the ADHD generating the anxiety? This distinction determines where treatment starts
• Often, treat ADHD first — in many cases, treating ADHD with stimulant medication significantly reduces anxiety, because the anxiety was being generated by the ADHD (missed deadlines, forgotten commitments, chronic stress of compensating). When the ADHD is managed, the anxiety it was producing often resolves on its own
• If anxiety remains after ADHD is stabilized, add anxiety-specific treatment — an SSRI, therapy, or both. At this point you know the residual anxiety is its own condition, not a symptom of ADHD
• Sometimes treat anxiety first — if anxiety is so severe the patient can't tolerate a stimulant (which raises norepinephrine and can temporarily increase anxiety), we stabilize the anxiety first, then carefully introduce ADHD medication
• Monitor both deliberately — the key mistake is treating whichever condition was diagnosed first and never reassessing. I track both conditions at every follow-up, adjusting the plan as the picture clarifies

Will ADHD medication make my anxiety worse?

This is the question I hear most often from patients who have both conditions. The honest answer is: it depends on the source of the anxiety.

If your anxiety is caused by ADHD — the chronic stress of dropping balls and compensating constantly — stimulant medication often reduces anxiety by addressing its root cause. Patients frequently tell me they feel calmer on their stimulant, not more wired. Their brain is finally getting the dopamine it needs, and the frantic compensatory system can stand down.

If your anxiety is a separate, independent condition, stimulants can sometimes increase it — because they raise norepinephrine, which can amplify an already overactivated threat system. This is exactly why proper evaluation matters.

If this sounds like your situation

If you've been treated for anxiety and it hasn't fully resolved, or if you've been treated for ADHD and the worry won't stop, or if you've never been evaluated for either but recognize yourself in both descriptions — a comprehensive evaluation that considers both conditions is the starting point.

At Recharge Psychiatry, all visits are by secure video. We serve adults and adolescents across Ohio, Indiana, and 11 other states. Recharge your mind. Reclaim your life. Schedule a visit or call us at (419) 318-7515.

Frequently asked questions

Can you have ADHD and anxiety at the same time?

Yes — about 50% of adults with ADHD also have an anxiety disorder. Having both and only being treated for one is where most suffering comes from.

How do ADHD and anxiety look alike?

Both impair concentration, cause restlessness, and make you feel overwhelmed. The difference: ADHD is insufficient dopamine (can't engage), anxiety is an overactivated threat system (can't stop scanning for danger). Same symptom, opposite cause, different treatment.

Can ADHD cause anxiety?

Yes — through learned expectation of failure, compensatory hypervigilance, rejection sensitivity, and chronic stress of masking. Many adults developed anxiety as a direct consequence of unmanaged ADHD.

How do you treat ADHD and anxiety together?

Treatment sequence matters. Often treat ADHD first — the anxiety it was generating may resolve. If anxiety remains, add anxiety-specific treatment. Sometimes treat anxiety first if it's too severe for stimulant introduction. Monitor both at every follow-up.

Will ADHD medication make my anxiety worse?

If anxiety is caused by ADHD, stimulants often reduce it. If anxiety is independent, stimulants can sometimes increase it. Proper evaluation determines which type you have.

Related articles

• Understanding ADHD in Adults: It's Not Just a Kid Thing
• Anxiety Medication: What to Expect When You Start Treatment
• The Link Between Prescription Stimulant Misuse and Anxiety

Isaiah Cruz, DNP, PMHNP-BC, FNP-BC

Isaiah is the owner of Recharge Psychiatry, a telehealth psychiatric practice serving adults and adolescents across Ohio, Indiana, and 11 other states. He is a Doctor of Nursing Practice and is dual board-certified in Family Practice and Psychiatric Mental Health. With experience treating ADHD, anxiety, depression, and other mental health conditions, Isaiah is passionate about making quality psychiatric care accessible through telehealth.

Recharge Psychiatry · 12575 Archbold-Whitehouse Rd, Whitehouse, OH 43571 · (419) 318-7515 · info@rechargepsychiatry.com · rechargepsychiatry.com

Important note

This article is for education only and does not replace a full evaluation or personalized medical advice. If you are in crisis, having thoughts of self-harm, or feel unsafe, please call 911, 988, or go to the nearest emergency room.