This sounds like my life. I have a very hard time getting to sleep. When I do get to sleep, I will wake up in the middle of the night; and, then have to try to get back to sleep. When I do, occastionally, fall asleep for a full night, I feel so good; but, these nights are few and far between.
I also have an "active" brain.
I don’t get it..wife is pretty much the same. Doesn’t bother us during the day..we’re not not tired during the day till after supper 6pm or so, then it starts kicking in.
Been the same for years since I retired although I think I slept better when I was working but then I’d hop up in the middle of the night and run downstairs and send myself an email because I solved a problem. Go figure.