I was in bed while Sully’s roaming around. He was chilling near my bedroom door when I got up to go to the washroom. As usual when I walked by he nudged me and put his head down for pets, so I sat down and petted him for a bit. I did my usual final pet and kiss on the top of his head before getting up to continue my way to the washroom. But when I got up to go he lunged at me and grunted. Which is so out of the norm for Sully. He has only ever grunted at me once before when I accidentally did something that I knew was out of bounds. (accidentally got him with the end of the brush when moving.)
This was seemingly out of nowhere though. He was purring up until I got up. After it happened I was confused, so I put my hand a little ways in front of his face as I always do to ask if he wants pets. (If he does he lowers his head, if not he just continues on as normal or more often than not will lick my hand instead.) When I did it this time he lunged again and seemed to go to bite me. His teeth got on my finger but just a light pressure and seemed more so to just touch me than actually bite. But when I went to stand up again he lunged and grunted again, and when I finally fully stood up he lunged again.
I’m really confused? This doesn’t seem like normal behaviour at all and seems really out of character to just be grumpy that I stopped petting him. and i don’t think I did something he didn’t like while petting him, since he was purring up until I was going to leave. When I had finally stood up and after the last time he lunged, he turned and ran under the bed and has been acting normally since.
Wondering if anyone has any possible ideas as to what’s going on with him. I’m more so curious about what could be going on, but also a bit worried since it seemed so random and not like him. We were just at the vet a week ago and he got a clean bill of health then.