Smart, Sensitive, Messy: ADHD That Went Unnoticed in Childhood

A look back at childhood behaviours that were written down in detail—but never recognised as ADHD.

I wasn’t a hyperactive boy running around the classroom.

I was a curious child of high intellect, a girl, an only child, raised by university-educated parents. I attended a Waldorf school, where a lot of emphasis was put on individual development—and where, instead of grades, we received detailed handwritten report cards with long verbal assessments. Those report cards still exist.

They describe how I behaved, how I reacted, what I struggled with, what teachers noticed enough to write down carefully, in full sentences.

About thirty years ago, ADHD diagnostics looked very different. The awareness was lower, the examples people were looking for were narrower, and they didn’t really include girls like me—curious, doing well in school, but struggling in ways that didn’t disrupt the classroom enough.

So nothing in those reports is labelled as a symptom. It’s all described as personality.

I was “too sensitive”

I was the crybaby. I went to tears when somebody looked badly at me. I cried almost every day in school. I started crying when a teacher pushed me to answer a question I did not know.

I was afraid of making mistakes, and when I did, I was either angry or sad. In my third class report card, my homeroom teacher wrote that it is allowed to make mistakes in school—that’s what we do there, we learn from them.

Now I know it was rejection sensitivity combined with emotional lability.

I had “strong interests”

Around fourth grade, I was into ancient Egypt. Not casually—I could tell which way a hieroglyphic text is meant to be read, and I could identify names, especially names of pharaohs.

Later, I became obsessed with Australian parrots. I created my own handwritten book about them and learned their Latin names. My parrot was Polytelis swainsonii, later I had a pair of Melopsittacus undulatus.

I kept bringing encyclopedias to school. Teachers appreciated it. Classmates didn’t really understand it.

I just “lost track of time”

After school, I was supposed to go to my parents’ workplace or my grandma’s office. But staying ten minutes longer to play didn’t seem like a problem.

Two hours later, my mom picked me up from a riverbank. On that same day, I had a small concert at my music school—and I had to play in muddy trousers next to a girl in a shiny new pink dress.

My parents were angry, so they bought me a watch. But you need to actually look at the watch. And who looks at accessories when they are in the middle of playing?

I was “just messy”

My room was a constant chaos. But I knew where my things were in all those piles.

My mom tried hard to teach me how to keep things tidy: pencils here, papers there, magazines on this shelf, board games somewhere else.

Once I tried to tidy up. I really wanted to—I started putting away old magazines, pieces of scrap paper, rollers that did not write anymore. Two hours later, I was sitting in the middle of an even bigger chaos than when I started. Because I found old postcards and photos. I started reading through those magazines. What if something important was going to be thrown away?

And then there was the other situation. When I left for a couple of days, like for a summer camp, my mom would clean my room for me. When I came back, everything was in its “rightful place.” And I didn’t know where anything was. I was furious.

What those report cards show

I was a curious child, and I was doing well in school. Which also meant that most of these things didn’t look like a problem. They were just part of who I was.

When I read those old assessments today, nothing in them feels new.

The sensitivity is there.

The reactions are there.

The way I approached things is there.

Everything is described in detail.

Just not recognized as something that might have a name. At the time, there wasn’t a framework that would connect these behaviors into something like ADHD—especially not in a girl who was functioning well enough, who was engaged, curious, and supported.

So instead of patterns, there were just individual traits.

Instead of symptoms, there was personality.

Looking at the same things differently

None of those situations have changed.

The crying in class.

The encyclopedias.

The muddy trousers.

The chaos in my room that made sense to me and no one else.

What changed is how we understand them. Today, many of these behaviors would likely be considered worth a closer look. They might raise questions, lead to further evaluation, or at least be seen in a different context.

Back then, they didn’t. And the only reason I can see it now so clearly is because it was all written down—not as a diagnosis, but as a detailed record of a child who was, apparently, just a bit too sensitive, too absorbed, too messy.

Just personality.

Topics: ADHD, childhood, late diagnosis, neurodivergence, personal experience