Food intake and output are still right on. He is molting, but he does that a few times a year.
The first few times when he bit me, I was petting him. I had been petting him for a while in each sitting, and all of a sudden he decided he was done with it. He didn't grunt or move away (he was sitting next to me on the couch), he just turned and snapped. This time, he was sitting in his bedroom. Normally, when I come in he runs to greet me. He just stayed in one spot and stared. I talked to him for a while, then got close to him. I reached down for him to come to my hand and he lunged at it, grunting and bit it.
If this could be a health problem, what could the vet check for? I don't want to call and say my buns needs seen because he is mean
He has NEVER bitten anyone prior to my pregnancy. We had a 2-year-old live with us for a few months and have had children visit, who I was worried about because young children can be aggressive with small pets, and he was so good. He has never even grunted or lunged at me, prior to these past few months.