Penny Gaines wrote:

How much physical exercise does he do? And what's his diet like?


He is pretty active, but his diet is not very good. I guess I haven't
made that connection before, but everyone responding here has brought
it up. I'll have to take a closer look at both the variety of what he
eats and his reactions to certain foods. I guess allergies could be
involved, although he shows absolutely no other symptoms of food
allergies.

Chris