Sorry. Reading what I asked, reads that I am questioning people with ADHD. My original intention was questioning myself. I've never considered myself to have ADHD (I've just never looked into it) but this is certainly a trait that I've suffered from from school onwards. From my school reports they always said I lacked concentration which was true and still is to this day. 30 years ago, when I was at school, ADHD wasn't something even mentioned.
I'm not questioning ADHD, my eldest son has been diagnosed with ADHD and ASD. He's certainly different to his brother but not too different to standout to people in the street. I've had family members question his diagnosis which is annoying as they don't see what we see on a day to day basis.