My cat recently stopped eating and is rapidly loosing weight, after numerous visits to the vets nothing has helped and they admit they have no idea whats causing it as his blood tests are normal. Someone told us that a cat with similar problems on the TV show animal hospital turned out to have throte ulcers. What is the best way to find out if that is the case for my cat and what treatment does he need? I figure it means another visit to the vets but any other help or insight you have would be greatly appreciated.