Oh I've never been diagnosed. I'm in the same boat as you.

My Mom and my brother have been diagnosed though only the former is on medication for it. I was a good kid that did well in school so there was never any reason to diagnose me. Also, I grew up poor as fuck in a deindustrialized rural town in Appalachia so it wasn't like my parents were keen to spend the money unless they had to.

But if you find out, let me know.