My cat Sebastian is almost two. He has been sick for six months and my veterinarian doesn't know what's wrong with him. I've taken him into the vet about twenty times and have spent thousands of dollars. His platelet and red blood cell count have been really low. Steroids used to help, but don't anymore. Antibiotics don't help. He never swallowed anything toxic that would be causing this. He had minor weight loss, bruised ears, blood in his mouth. His bone marrow is producing the cells just fine. Something else is killing them. He's otherwise perfectly happy and active. He's going to have an ultrasound done next week to check on his spleen.