Hi - My cat Mac - neutered male - was just diagnosed; took him to the vet because there was a lot of pee in the litter box and he was drinking like crazy. He is a big cat when about 18lb vet put him on metabolic diet (which he disliked) and he ballooned to 22lb (he was eating a combo of metabolic and FF Gravy/Pate). I'm feeling horribly guilty; I feel like I gave him diabetes by making him too fat. He was tested at the vet's and his BG was 370. He was put on PZI - 1.5 units. I took away his metabolic and left him to eat FF Pate, which he likes. He was given PZI 1.5 units the first evening, and I was told to test the following day, 6 hours after food/dose. He doesn't like having his ears poked. His numbers look like this (6 hours after): Day 1 - 323 Day 2 - 222 (He was very drowsy after dosage on day 2 so I called the vet's office and reduced dose to 1 unit) Day 3 - 273 Day 4 - 333 (was very stressed out during blood draw, licking lips, threw up right after) What's happening with him? Thanks! ETA posted same in intro too, later found this forum.