It looks like Mike will be okay. I took him to the vet today and they drained his lump. The vet said it was an absess, probably caused from a bite. He also said that the reason he was acting so strange yesterday was probably because he had a real high fever. Mike is back to his normal self today, except that he is leaking fluid all over the house. I have to put a warm compress on it 2x daily as well as give him antibiotics. Fun. I'm just glad that he's going to be okay. I thought for sure yesterday that he was going to die. -Shannon