Yeah, the left side of his face looks odd. It could be an old injury or, as I mentioned, sometimes MBD is responsible. He otherwise looks plump and healthy.

If it were me, I would try to get him a vet appointment not only to address him not eating, but to get the side of his face looked at. They'll be able to check his bone density and look at his face/into his mouth to be sure it isn't what's affecting his ability to eat.

Lol, projectile peeing is often a fear response or a general "I don't like what is happening right now". One of my WTFs would sometimes do it when applying medication she didn't like.