I didn't mention the petty and serious crime, from occasional shoplifting, just for the thrill, in my 30s to a bank robbery described as "like something out of a f*****g Michael Caine movie!" by the eventual detective during interview (Although that was done to try to get me out of the financial hole promoting a snooker dice game I designed and had manufactured, all done on credit cards) all in my late 30s.
As for getting checked, I'd first take an online ADHD test to see what your (honest) answers say about any degree of possible ADHD. After that, if you think you need to take it further, contact your GP. I'll warn you though, even if you are referred, it will take more than a few months, possibly even years. Because of my age (70) I don't expect to be fast-tracked!
Good luck.
