He says he can't think straight and his mind is all over the place, can't concentrate, etc. And then he's acting really goofy, like he's not on ANY of the stimulant medication at all -- since usually it sort of "sobers" him up and he takes most things seriously. He says he doesn't really enjoy feeling like that, so that's a plus! Like I said, he's been o.k. this week. We'll see how he is once school's out.