no other than his weezing he seems healthy.he has already eaten 2 mice and one med. rat it takes both hands to hold his middle so hes not thin i dont think. he is very active and i have never seen any fluid coming out of his nose or mouth. i have even come in on him drinking, which was cool. he can be a little grumpy when you reach for him though, got to get him quick or he'll strike right at your face.