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This is for the ADHD girls who were ‘fine’

You weren’t the one running around the classroom. You weren’t being sent home or called out for bad behaviour. In fact, you might have been described as thoughtful, bright, maybe even high achieving. You got through school. You had friends. You were fine.

And yet… it always felt like you were trying harder than everyone else.
There was always more internal effort involved. You were called sensitive, dramatic, forgetful, too much, sometimes not enough. You learnt quickly how to hold yourself together in public and then quietly unravel in private, where no one could see how deeply you were actually struggling.

For decades, ADHD research and diagnostic criteria were largely built around boys. Boys made up the bulk of childhood clinical samples, so what counted as “real” ADHD became shaped around how it presented in them. Loud. Disruptive. Hyperactive. Distractible.

Society then took that model and applied it broadly, without really asking who it might miss. If diagnostic thresholds rely heavily on visible hyperactivity and behavioural disruption, then the children who internalise their struggle will not meet that bar. They will go on unnoticed. Alone. Struggling in silence. This is why we missed our girls.

ADHD in girls often looks different. The hyperactivity may not be running across a classroom. It might be constant mental restlessness. Racing thoughts. Fidgeting small enough not to attract attention. Emotional reactivity that feels overwhelming but is quickly apologised for. It might be overpreparing. Overcompensating. Monitoring yourself so closely that you appear calm while your nervous system is firing off on all cylinders.

Girls are socialised to be small. To be quiet. To be polite and kind. This matters because
hyperactivity is not interpreted neutrally. It is judged differently depending on who is displaying it. Girls are generally less permitted to be impulsive, loud or physically restless without social consequences. So many learn to contain it. They redirect it inward, and instead of being frustrated with the world, they become frustrated with themselves.

So, what does this mean for the late diagnosed woman?

When ADHD is missed in childhood, the effects compound over time. Not just academically or professionally, but also internally.

Many women who are diagnosed later in life describe growing up believing they were
fundamentally flawed. No matter how hard they tried, it was just never good enough. ADHD traits are still frequently moralised. Struggling to initiate tasks is interpreted as lack of effort. Forgetfulness is seen as carelessness. Emotional dysregulation becomes immaturity.

When that narrative is repeated throughout childhood, it does not stay external. It becomes internal. Over time, shame settles in. It becomes evidence to back up a theory that has always been in the back of the woman’s mind: there is something deeply wrong with her.

It is uncomfortable to admit, but our systems are far more responsive to disruption than to distress. If your ADHD made you inconvenient to others, it was addressed. If it made you exhausted and self-critical but still functioning, you were left alone to struggle in silence.

Now, when adult women sit in therapy describing burnout, chronic self-doubt, and the
persistent sense that something is wrong with them, that did not appear out of nowhere. It was built slowly, over years of being misread.

Girls were not less ADHD.
They were just easier to overlook.