Suspecting you have ADHD

Recognition can arrive in adulthood in a surprisingly quiet way.

At first it isn’t a diagnosis. It isn’t certainty. It’s more like a shift from “that’s interesting” to “hang on… that sounds like me.” Once that shift happens, it can be difficult to return to the old story.

In my case, it began in early 2023 during a work-from-home break. I put the radio on when I step away from my desk — not for background noise, but because it clears my head between tasks. One morning I heard a woman talking about her recent ADHD diagnosis. She’d spent decades being treated for anxiety and was now describing relief after being properly understood and medicated.

Context matters too. Around then, I’d already been thinking about speaking to my doctor about medication. I’d been on antidepressants for about five years, and ongoing stress was starting to signal they weren’t really working. I’d also heard stories from people close to me about medication changes that were genuinely life-changing — which wasn’t an experience I could relate to.

So when I heard that interview, it tapped into an ongoing thread of trying to make sense of why life felt harder than it seemed to for other people.

Stereotypes

When suspicion first appears, it often runs straight into stereotypes. Many adults still carry the assumption that ADHD is something you would have “known about” in childhood.

In my case, my first thought was: “it can’t be ADHD, can it? ADHD is about naughty kids running about in classrooms, right? Surely I’d have known by now.”

That stereotype is powerful because it offers a neat reason to dismiss yourself. It also encourages a kind of false logic: if you were someone with ADHD, it would have been obvious earlier in life.

What it misses is the reality of adulthood: years of coping strategies, self-management, compensations, masking, and internal effort. Many adults become experts at appearing normal, while privately paying a cost in stress, anxiety, and exhaustion.

Suspicion, when it starts, is often less about discovering something new and more about noticing a pattern you’ve been carrying for a long time.

Recognition

Once the question is in your mind, it’s very hard not to seek information. And the emotional impact of that information can be unexpectedly strong.

After that radio segment, I Googled “ADHD in adults”. The first page I came to was the NHS page on ADHD.

I’ve always been hesitant to reveal my inner self. The gap between that person and the expectations I felt coming at me from the world has been a constant source of stress. From as far back as I can remember, I would wake up with the thought, “oh god, I’ve got to do this again” — without ever knowing why.

So the most surprising part wasn’t the facts I was reading. It was how much their totality looked like me on the inside. There’s a particular kind of relief in reading words that accurately describe your internal experience — especially if you’ve spent years assuming that experience is either a personal failing or something you simply need to hide.

Patterns

In this stage, it’s easy to turn ADHD into a checklist and wonder whether you “have enough” traits to count. But what often lands more powerfully is the overall shape: the way attention, emotion, energy, and effort seem to behave over time.

In my case, several things leapt off the page immediately. I constantly battle the impulse to interrupt people. I have to work hard not to succumb to emotion. Hyperfocus was painfully familiar: if I’m immersed in something interesting, I can disappear into it until I’ve grasped everything. On the flip side, boredom arrives quickly, and I often need multiple tasks going at once to stay engaged. My desk work resembles a sawtooth pattern — short bursts of intense focus with a breather in between. My short-term memory is terrible. I remember who topped the charts on my fifth birthday but forget why I entered a room. Dense, text-heavy reading has always felt anxiety-inducing.

Those details mattered not because they were quirky, but because they formed a coherent pattern. They described a particular relationship with attention, interest, emotion, and effort. It felt like someone had written down a set of things I’d assumed were just “me being me”.

Metaphors

Sometimes a single metaphor captures the internal experience more cleanly than any list of traits.

In my case, there was one description that felt like it had been written specifically for me: the idea of the mind as a motor that won’t stop. I actually have a picture in my head of myself shovelling coal into a steam engine and the train won’t stop. That is what my mind feels like. It has to keep going, constantly fuelled by interesting stuff.

In the suspicion stage, metaphors can be revealing because they don’t flatter you; they simply name what you’ve been living with. And once something has named your internal experience accurately, you don’t really un-read it.

Self-doubt

Recognition doesn’t always arrive as relief. It can arrive as doubt.

If the recognition is strong, it can feel suspicious in its own right: am I just latching onto something because it’s emotionally satisfying? Am I doing that thing where I take an idea and run with it too far?

I later learned that an unusually strong gut feeling is common among people diagnosed later in life. A colleague even told me their psychiatrist had remarked that they rarely see that gut certainty fail to result in a formal diagnosis.

But in the moment, before any formal process, you’re left holding the tension between recognition and caution. The suspicion stage isn’t about convincing yourself. It’s about being honest about what you’re noticing — without rushing to conclusions either way.

Defensiveness

Another common feature of this stage is defensiveness that appears before you’ve even said anything out loud. A few people I’ve spoken to have described this exact thing, yet it was something that caught me by surprise.

In my case, it was hard enough to believe I might have ADHD, so why would anyone else? I found myself anticipating judgement, dismissal, and the need to justify myself.

That reaction told me something important too: how much I’d learned to expect disbelief when talking about internal experience. Even before you pursue certainty, suspicion can reveal the emotional landscape you’ve been navigating: the private strain, the self-protection, the reluctance to be seen.

Clarity

Underneath the reading, the recognition, the doubt, and the fear of judgement, there is often a simple practical desire.

I wanted to know for sure. Once you’ve triggered the thought, it’s difficult to leave it unresolved. There’s a saying that it’s better to know you’re a zebra than forever worry you’re a strange horse.

That was what caused me to pursue a diagnosis.