I was diagnosed as a teenager, but sort of ignored it and carried on in my haphazard way for another 20 years.
Recently I've purposefully made the effort to understand myself better, and develop routines and methods to help me function better.
Leaving the ex helped - he was a slob and clutterer, he would buy random shit and move stuff around all the time. I have a map in my head of everything in my house, so even if something isn't in a logical place, I can still find it. Especially now that he's gone!
My head is buzzing, constantly. I jump from one topic of conversation to the next with dizzying speed, and to other people they see no connection between the two, but when I slow down and talk through the steps of "X reminded me of Y, which reminded me of Z, which reminded me of A, so then I thought about B and talked about C" they understand. But also look a bit bugeyed and shocked.
I am very, very good in emergency situations. I can see the steps required for action quickly, and then make a list and get it done. High stress and high pressure situations are where I shine, and I'm proud of that.
I'm quite intelligent, I can see the bigger picture and understand complex concepts quickly, I learn very fast:
BUT
If I don't like the topic, if I'm feeling strung out or overextended, I will avoid, avoid, avoid like crazy. I have recently changed jobs, and my new manager is surprised and pleased with my work so far, but I think he's already worried about me burning out. He doesnt know that new ideas, situations and experiences are highly stimulating for me, and therefore enjoyable, and in these situations I take in information and produce work at a rate of knots.
I can never turn my brain off, unless I have had a drink, or I'm doing a particular Kundalini Yoga meditation that helps me focus and slow down.
Honestly though, as tiring as it is to be me, I wouldn't change my brain for anything. I'm creative and capable, and even though the laundry piles up or I can't see the dust, I am doing just fine.