FORGOT TO SAY, he's 10 months old 
when i got him.
he used to eat from a big bowl.
now i have to feed him piece by piece.
if i put all the meat that he likes alot in a bowl he won't eat it. but feeding piece by piece he will, alot of it.
also: if some time when i give him a bigger piece meat. he will hide them next to his bed... or under a chair.
whats up with that..
do you think not exercise enough cause this?