We are having difficulty in getting a correct diagnosis for my 13-year old Ragdoll Cat. Sassy has a history of Kidney issues since a kitten. Therefore we are constantly testing her levels. On presciption canned and dry for IBD. Recently started having vomiting issues again. Has lost weight. In December started periordically vomiting liquid with signs of blood. Had complete blood work done, urinalysis and x-ray. Kidney levels had risen but still okay. Rest of blood work and tests fine. X-ray showed one kidney larger than the other, which has been her history. Tried sulcrafate with pepcid. Two doses and she has sudden onset of diarrhea and lost her appetite. Stopped meds. Finally settled down after a few weeks. Ultrasound just performed. Initial diagnosis was gastric lymphoma. Then 4 days later, the aspiration was not enough of a sample and the test can back inconclusive. Now it is being suggested that she has an inflammation. Suggested treatment is to put her back on sulcrafate with pepcid which I can not do to her again. Any ideas from what I've mentioned of what could be going on? I've been searching all kinds of stuff trying to find anything. Thanks for your time.