wow, thanks for the concern everyone! you guys are so nice!

anyways here are the results...after 2 vet visits, a bunch of tests, and a couple hundred dollars later the answer is still unknown as to why that happened but I was told that he was a very healthy boy and the only thing that he had was an ear infection. although i'm still bummed that I don't know what and why I am glad to hear that he's fine even thought I could have told myself that for $350 but hearing it from 2 vets give me a peace of a mind.