Thank you all so much. Went back to the vet yesterday for a renal panel recheck, following 10 days of daily fluids and attempting to give Metamucil for the blockage (which we did not have much luck with therefore I'm betting is not cleared up as I have not noticed much change in the litter box). His renal panel was still elevated (SDMA was elevated a little from the previous week, the BUN and creatinine were lower but still elevated). His BG was "HI" yesterday morning so doc upped his insulin to 4.5 units twice a day; when I picked him up his BG was only down to 568 (from 720am to 440pm). Had me cut back his dry food to 1/4 cup twice a day. Told me to stop the Metamucil and continue with fluids, only 3 times a week instead of daily. I check his BG twice a day (since he is not regulated), before feeding and before insulin, every 12 hours. His is still all over the place. We started this journey in October and have yet to get his BG regulated.