He actually looks a bit more dull than a few days ago, but his eyes aren't milky or white. The wrinklyness almost makes him look underfed, but that's impossible because he'd eaten three days before I brought him home on Friday, and then again Sunday. Also, if you look at the pictures I posted before he looks fairly plump, and he doesn't look quite as plump at the moment. I need to get some more pictures. Thanks for the info though. If this isn't actually a shed I know what to look for when it does happen.
I'm pretty satisfied with the shop I bought mine from, but if I decide to get another one I'll probably go with a breeder. If I do ever get another one, I want to get a female HET-something. So I can' think of a better way than the breeder route.