Idk he's always had this and it's more common in oriental lunatic breeds plus he came from a hoarder house that was also a drug dealer and he was caged frequently with several other cats and with his size that says a lot. She told them she liked him so she fed him but the others were not fed and some likely dead. I'm sure she didn't feed him often since he's such a food bowl guardian as if he must make sure his food doesn't disappear. This was back in 2016 and these breeds are high level intelligence and need much interaction so his circumstances may have done this. He doesn't have symptoms that fit deficiencies but gets bad hairballs and needs remedy so he can pass them. Cats rarely vomit on other cats so he got accustomed to swallowing his hairballs and still does & acts freaked when he pukes. They get big and stuck likely on the edge of the junction at the small intestine which causes discomfort and no desire to eat since he'll keep puking until he gets esophageal irritation & pukes pink and red. He had to go to er vet for this. Tomlyn hairball gel is a lifesaver. When he starts doing the hack they do a few days before puking it I give it to him & it works. Recommended. It's behavioral with him.
