Has anyone had autoimmune issues with their Cavalier? In May my dog all of a sudden started bleeding from his mouth and his bum. I took him to the emergency vet and after 5 days in the hospital, IVs, and a ton of drugs he became stable. They said it was Thrombocytopenia in which the dog's body attacks its own blood platelets as though they are a pathogenic bacteria or virus. They can't tell me if it was just his autoimmune system or a tick, something he picked up......but the question now is can he still be vaccinated or will it make his immune issues flare up again? I've heard varying opinions and I'm looking for any advice or anyone knows of a Cavalier autoimmune specialist that I could ask for a expert opinion as general vets don't seem to match up on the vaccination issue.