First question. Do you feed at the same time every day? How many hours after feeding does this occur? Have you tried giving multiple small meals? This does sound like a digestion issue. He sounds like he is having some kind of stomach pain.
Try multiple small meals. Try adding digestive enzymes to each meal. Try giving him a probiotic supplement. Try feeding at a different time. Try feeding at a time when he will not be able to play afterwards. Try adding water to his food. Try a grain free food.
It may take some detective work to figure this out. Sorry I don’t have any definite answers.
