Thanks everyone for the thoughts and prayers. The swelling doesn't have me as concerned as the pupils...the vet seemed really concerned when he looked at him...he really didn't know for sure what caused it just said a bunch of different possibilities...some possibilities being very serious and some not serious. I just hope it's not a neurological problem, I hope it's just an insect bite. He was stung by a bee once and his whole face was swollen up, he's really sensitive to things.