Making sure that Mr. B is on a good quality senior diet is the first step. Older cats can't easily process all the protein in regular cat food. I really hope this doesn't happen to you but my poor Regina started loosing weight then couldn't hold her food down. She was 18 and diagnosed with inflammatory bowel disease. If senior food doesn't help put some weight back on please go to a vet asap.
I would definitely have the vet take a look at him, as that is often the first sign of kidney problems, and kidney problems are VERY common in older cats.
Star Hunter on Sep 04 at 04:36 PM