I was diagnosed with ADHD in my 30s because of this. I don't habe hyperactice activity so never thought I could have ADHD. And since I can't see how someone else's brain works, I didn't realize things with me were not normal. It was quite exciting to realize that a lot of things I struggled with could he explained.
Same here. My brother has it much worse, and it manifested in him with outward hyperactivity so he got treated and I did not. I got by, but when I finally got into grad school I realized I had a problem that will power couldn't fix.
Same for me, got diagnosed in my late 20s after I told my doctor that I was having serious trouble reading and holding conversations. People always thought I was antisocial because I didn't talk much, but it was because I couldn't focus enough to keep up with a conversation.
