Harry has been on antibiotics for over 3 weeks baytril and doxy and his breathing is not getting better and tonight he looks just miserable and his back legs are getting clumsy on him... So until I can get the vet to give me azitho I am going to start a fresh course of antibiotics adding in amoxi and trying a couple doses of lasix to see if I can get some improvement out of him as he has quite wet sneezes which makes me think this is trying to turn into pneumonia which I don't want! What else can cause these symptoms? Heart issues? Neurological? He is 20 months old and was bred by someone that didn't have a clue what she was doing.. I have 2 of his siblings both have issues of their own, one is hormonal nightmare and other has a tumor coming in high on her side.. They are all the same age.. I'm going to try and get him in Thursday but the vet probably won't be able to see him till next week so until then I want to at least keep him from getting worse than he is.. The lasix is 20mg and he weighs 565 grams!