also, with my older one ... he's like running on re-chargeable batteries. The more active he is the wilder he gets (and the less he sleeps too) ... So I actually need to try keep him calm rather than have him do too much physical activity. ... I've had friends and family tell me that I just need to get him out more, have him run in the back yard more, take him to the gym, etc. ... but I found it actually make things a lot worse because then he just can't settle down. Different structured brain and hands on activities seem much better for us (going between his games, play-doh, tv time, painting, some outside time but not too active, cafe where kids can play ... sort of like a children's museum, etc.).
Also, I wouldn't dismiss ADHD as an option ... a lot of kids with ADHD can still focus really well on activities they like / choose ... it's all the other activities they have problems with.
