Ko,
Sorry to hear things are rough right now. I, too, would think about another panel..it sounds to me like hyperthyroid. Tex is HT, and I am blessed cause pilling him is easy as 1,2,3. He still struggles with the weight, and is on a second med for kidney failure. He is 'only' 12 (nearly 13). I wish you luck with Grasshopper. Us tuxies have to stick together, you know.