M.B.
It sounds a little like you have ADD. I do too and used to be medicated for it, but the medications they give you have harsh side effects, so I'm off it. For me, sleep, exercise and a pretty strict diet with no high fructose corn syrup and very little processed food helps. But I'm still spacey and forgetful. My biggest problem is focusing, I hyper-focus most of the time and have a hard time focusing on what people are saying to me. You're not alone :)