We brought oreo to the vet today. They said he might have a Uti but they are thinking Feline Lower urinary tract infection which would include the ureteral blockage. Which makes me very upset. We had 2 other cats that had this and the surgery is very expensive and we ended up havin to put both cats down b/c they were in soo much pain weeks after the surgery. They put oreo on some antibiotics and also switched his food over and they said if they caught it early enough that it maybe reversed. Im still nervous anyways