My boy was neutered on the previous Friday and suddenly started vomiting yesterday. He's now vomited 4 or 5 times. I called his vet and they said it was probably because of the anesthesia.. but 4 and 5 days later? That doesn't feel right to me.. What should I do? He's been himself for the most part except for isolating himself after vomiting. He's almost 2 could being a little older when he had the surgery have something to do with it? I'm really worried about him..