True, I find myself craving more fatty foods but not sweet ones, but then I think I was born with the opposite of a sweet tooth.  And yes, when I eat more I also feel very antsy for playing more, so to speak.  My craving for activity increases with my caloric intake; might just be the blessing side of my ADHD curse, but I can't see why even "normal" people wouldn't experience this to some level, too.