Agree. The activity output needed is spot on. He does eat quite a bit, and he sleeps like a rock at the end of the day. His teachers just started having him type out his work. Getting the thoughts out of his head and on paper by pencil wasn't working. Complete turnabout in writing assignments with the change.
I was hyper as a child, too, and I admit as well to having several things going on at once. I just consider myself an efficient multitasker.
but I think it is possible that I have ADHD, as someone mentioned above about reading things (contracts, etc., that are dry and uninteresting), but it hasn't hampered me in any way. I break things down and compartmentalize a lot to get things done.