Yes, it is very much a thing. Be prepared for lots of your quirks and personality traits to be revealed as symptoms of ADHD if you just got diagnosed lol. Not remembering names, asking people to repeat themselves and then realizing that you sort of heard them halfway through thier sentence. Hyper focusing on whatever. Dopamine seeking behavior. The list goes on. I am not a doctor, just another ADHD person on the internet. :)

An orange glower