Timmy is my wonderful gray mouser. He is 11 years old. He weighs 13.2 pounds. Timmy was diagnosed with diabetes about 3 weeks ago. I took him to the vet because he had lost a little weight, but he was drinking a lot, was flooding the litter box and did not want to eat. He was still his loving self though. After complete blood work the vet put him on Vetsulin 2 units to start. Well two glucose curves later he was up to 3 units and then 4 units, which is where we are now. He also has a history of urethral obstruction and has been on the Royal Canin urinary dry food for years now. The vet put him on Royal Canin Glycobalance dry food because it also helps with obstruction. I have been devastated these last few weeks, but I am getting myself educated and this site has helped me so very much. I learned that he must be on low carb wet food, so I started home testing on Sunday, two days ago. It went so much better than I thought. Although I need a lot more practice. I am using the Relion Prime meter. My question right now is yesterday, Monday, before his a.m. injection he was 407. It came down through the day to: 259, 224, 198 and then before the p.m. Injection it was 401. Throughout the day he ate 3 Sheba perfect portions beef pate with no gravy along with the Royal Canin Glycobalance. This morning, Tuesday, it was 378 before injection. *****Tonight though it is at 194. He has eaten the same food and amounts as yesterday. I have no idea what to do now. I can't give the 4 units, but do I skip it tonight. Any help will be appreciated so much.