There's a quote I saw on Tumblr once- "Before diagnosing yourself as depressed, make sure that you aren't, in fact, surrounded by assholes." Similarly, I think a lot of my ADHD tendencies (I really don't want to call them that- feels like I'm shitting on people with actual ADHD) come from the fact that I've spent a lot of time in an education system I hate.
But I have no idea, of course. Maybe there's something to all this. I don't think it's so black-and-white. Will check it out. Thanks for sharing. :)