My 6 month old kitten, Garfield, started acting funny about 4 days ago. His balance seems to be affected and he has lost weight. When he tries to walk it is like he has lost his balance, like he might have Multiple Sclerosis if he was a human. I took him to my vet and he said that he thought it was FIP, but he couldn't be sure. He did a blood test and that combined with his symptoms made him think that was what it is. We have six cats in our household, but they don't stay in the house all the time, although they do all come in to eat. I was wondering if there would be anything else that would make him act this way? Could anyone give me any information?