ADHD and Anxiety: Why They So Often Go Together (and What Actually Helps)

The Connection Nobody Warned You About

Here is something I wish someone had told me years ago: if you have ADHD and you also feel anxious a lot of the time, you are not imagining it. You are not being dramatic. And you are definitely not alone.

Research suggests that around 50% of adults with ADHD also meet the criteria for an anxiety disorder (Kessler et al., 2006, Journal of Clinical Psychiatry). That is not a small number. That is half of us walking around with two conditions feeding off each other, often without realising that they are connected.

The NICE guidelines (CG72) recognise this overlap too, they specifically flag anxiety as one of the most common comorbidities alongside ADHD. And yet, so many people I work with come to me saying things like, "I thought my anxiety was just me being a worrier" or "I never connected the two until I got diagnosed."

So let us talk about why ADHD and anxiety are such frequent companions, how they tangle together, and, most importantly, what you can actually do about it.

How ADHD Creates Anxiety (Even When There Is Nothing to Be Anxious About)

Here is the thing people do not always understand: ADHD anxiety is not always about having something specific to worry about. Sometimes it is a background hum. A low-level tension that sits in your chest and whispers, "you have forgotten something important." And the worst part? You probably have forgotten something. Because ADHD makes forgetting things practically inevitable.

The "What Have I Forgotten?" Loop

This is the one I hear about most often. You know your memory is unreliable. You know things slip through the cracks. So your brain tries to compensate by running a constant background scan, have I missed a deadline? Did I reply to that email? Was I supposed to be somewhere today? Did I say something stupid in that meeting?

This is not irrational anxiety. It is a perfectly logical response to having a brain that genuinely does lose track of things. The problem is that the scanning never stops. It becomes a worry loop that drains your energy even when everything is actually fine.

Rejection Sensitivity Fuelling the Fire

If you experience rejection sensitivity, you already know how a single offhand comment can spiral into hours of rumination. Did they mean it that way? Are they annoyed with me? Have I done something wrong? This kind of social anxiety is incredibly common in ADHD, and it layers on top of everything else.

Time Blindness and Deadline Panic

Time blindness is one of those ADHD traits that sounds minor until you live with it. When you genuinely cannot feel how much time has passed or how much time you have left, deadlines do not approach gradually, they ambush you. That creates a pattern of last-minute panic, which your nervous system starts to anticipate. Eventually, you feel anxious about deadlines even when they are weeks away, because your body remembers what the panic feels like and wants to avoid it.

The Exhaustion of Masking

Many of us, particularly women with ADHD and those diagnosed later in life, have spent years masking. Pretending to be organised. Forcing ourselves to sit still. Monitoring every social interaction for mistakes. Masking is exhausting on its own, but it also generates anxiety because you are constantly performing, constantly monitoring, constantly worried about being found out.

If any of this sounds familiar, you might find it helpful to explore how ADHD affects motivation and dopamine too, understanding your brain's reward system can explain a lot about why certain situations trigger more anxiety than others.

ADHD or Anxiety? The Overlap Problem

One of the trickiest things about having both ADHD and anxiety is that many symptoms look almost identical from the outside. This is part of why so many people get misdiagnosed, they receive an anxiety diagnosis when the root cause is actually ADHD, or vice versa.

Here are some of the symptoms that overlap:

The reality is that trying to separate them neatly is sometimes impossible, and honestly, it is not always necessary. What matters more is understanding how they interact in your specific brain so you can find strategies that address both.

If you are unsure whether your symptoms lean more towards ADHD, our ADHD self-assessment can be a useful starting point. It is not a diagnosis, but it can help you figure out what to explore further.

The Vicious Cycle: How They Make Each Other Worse

This is the part that really gets people. ADHD and anxiety do not just coexist, they actively make each other worse. It goes something like this:

ADHD causes you to forget something important → You miss a deadline or let someone down → Anxiety spikes → The anxiety makes it harder to focus → ADHD symptoms get worse → You forget more things or struggle to start tasks → More anxiety → And round and round it goes.

Or the masking version:

Anxiety tells you that you must not let anyone see you struggle → You pour enormous energy into appearing "normal" → Executive function is depleted → ADHD symptoms break through anyway → Anxiety increases because the mask is slipping → You try even harder to mask → Burnout.

If that second cycle sounds familiar, you might want to read about ADHD burnout too, because burnout is often where this pattern ends up.

The research backs this up. Studies consistently show that when ADHD and anxiety co-occur, both conditions tend to be more severe than either would be alone. It is not one plus one equals two, it is more like one plus one equals three.

What Actually Helps: Practical Strategies

Right, so the picture is a bit grim so far. Let me get to the useful bit. These are strategies I have seen work, not just in theory, but in practice, with the people I mentor. None of them require you to have perfect executive function (because that would rather defeat the point).

1. Externalise the Worry

Your brain is running that constant "what have I forgotten?" scan because it does not trust its own memory. Fair enough, ADHD memory is genuinely unreliable. So stop asking your brain to hold everything and get it out of your head.

Brain dumps are brilliant for this. Set a timer for five minutes and write down everything that is floating around in your mind. Tasks, worries, random thoughts, things you need to buy, people you need to text. Get it all out. The list does not have to be organised or pretty, it just needs to exist outside your head.

Once it is externalised, your brain can stop scanning. The information is captured. You can deal with it later. This alone can reduce background anxiety significantly.

I talk a lot more about systems like this in my article on executive function strategies, it is worth a read if you find brain dumps helpful and want to build on them.

2. Reduce Decision Fatigue

Every decision costs energy. And when your executive function is already stretched thin, each tiny decision, what to eat, what to wear, which task to start with, adds to the overwhelm.

Simplify where you can:

• Meal planning (even roughly) eliminates daily "what is for dinner?" stress
• Laying out clothes the night before removes morning decisions
• A default task priority system means you do not have to figure out what to do first every single day
• Automating bills and reminders takes things off your mental plate entirely

The less your brain has to actively decide, the less fuel there is for anxiety.

3. Body-Based Regulation

Anxiety lives in the body as much as the mind. And ADHD brains often respond better to physical strategies than cognitive ones, partly because "just think positive thoughts" requires the kind of sustained executive function that ADHD makes difficult.

Things that genuinely help:

• Movement: Walking, stretching, shaking your hands out, even just standing up and moving around. Your nervous system calms down faster when your body is involved. You do not need a full workout, five minutes of movement can shift your state.
• Breathing exercises: The physiological sigh (double inhale through the nose, long exhale through the mouth) is quick and genuinely effective at activating the parasympathetic nervous system. It takes about 30 seconds.
• Cold water: Splashing cold water on your face or holding something cold triggers a dive reflex that slows your heart rate. It sounds too simple, but it works.
• Bilateral stimulation: Walking, tapping alternately on your knees, or even just shifting your weight from foot to foot. Anything that crosses the midline tends to calm the nervous system.

4. Build Reliable Systems

A lot of ADHD anxiety comes from not trusting yourself. You do not trust that you will remember, that you will follow through, that you will show up on time. And honestly? Based on past experience, that lack of trust might be well-founded.

The solution is not to force yourself to be more reliable through sheer willpower. It is to build systems that are reliable for you:

• A calendar with reminders (and reminders for the reminders)
• A single, simple task management system that you actually use
• Visual cues, sticky notes, whiteboards, things left in doorways
• Routines that reduce the number of things you need to actively remember

When you have systems you trust, the background anxiety decreases because your brain knows things are captured somewhere safe. It can stop trying to hold everything.

A note on perfectionism: Your system does not need to be perfect. It does not need to be Instagram-worthy or comprehensive. It just needs to catch the important things often enough that your brain starts to relax. Good enough is genuinely good enough.

If you want help building these kinds of systems, that is exactly what ADHD mentoring is for. We work together to figure out what fits your brain, your life, and your specific flavour of chaos.

5. Name What Is Happening

This one sounds almost too simple, but it is surprisingly powerful. When anxiety spikes, try saying to yourself, out loud if you can, "This is my ADHD anxiety. My brain is running a false alarm because it does not trust itself. I am not actually in danger."

Naming the experience creates a tiny gap between the feeling and your response to it. It does not make the anxiety disappear, but it can stop it from escalating. Over time, it builds a different relationship with the anxiety, one where you observe it rather than being swept away by it.

When to Seek Professional Help

Strategies and systems can do a lot. But sometimes anxiety is bigger than what self-help and good habits can address, and that is completely okay.

You should consider speaking to your GP if:

• Anxiety is significantly affecting your daily functioning, relationships, or work
• You are avoiding situations, places, or people because of anxiety
• You are experiencing panic attacks
• You have physical symptoms (chest pain, persistent nausea, chronic muscle tension) that do not have another explanation
• Self-help strategies are not making enough of a difference

The NICE guidelines recommend that when ADHD and anxiety co-occur, both should be assessed and treated. Sometimes that means medication, either for the ADHD, the anxiety, or both. Sometimes it means therapy, particularly CBT adapted for ADHD. Your GP can help you figure out the right path.

Where Mentoring Fits In

Here is something I think is important to be honest about: mentoring is not therapy. If you have clinical anxiety that needs therapeutic intervention, a mentor is not a substitute for that.

But here is what mentoring can do: it can help with the practical, executive function side of things. Building the systems, creating the routines, working through the task paralysis, developing strategies for the specific situations that trigger your anxiety. Many of my clients find that once they have reliable systems in place and their ADHD is better managed, a significant chunk of their anxiety reduces on its own, because the anxiety was being generated by the ADHD chaos.

The ideal combination for many people is therapy for the emotional and clinical side, and mentoring for the practical and structural side. They complement each other brilliantly.

You can read more about how mentoring works and what it involves on my services page, or take a look at pricing options to see what might work for you.

You Are Not Broken, You Are Carrying a Lot

Living with ADHD and anxiety is genuinely hard. You are managing two conditions that amplify each other, often in a world that does not understand either of them particularly well. The fact that you are still showing up, still trying, still looking for ways to make things better, that matters.

You do not have to untangle everything at once. Start with one strategy. Build one system. Make one appointment. Small steps are still steps, and they add up faster than you think.

If you want support with the practical side, someone who gets ADHD, who can help you build systems that actually work for your brain, and who will not judge you for the things that have slipped through the cracks, I would love to help. Book a free discovery call and let us figure out what would make the biggest difference for you right now.