My Bella who weighed 13.6 pounds 3 weeks ago was diagnosed with feline diabetes. She numbers were at 464, and her veterinarian put her on a diet of Purina DM wet and dry. A check 10 days later showed no difference in her numbers, and she was prescribed 1 unit of insulin every 12 hrs. This past Monday, we went for a followup. She now weighs 13.2lbs, and will not eat but maybe a few bites of food here and there. Had to skip her insulin this morning because she wouldn't eat. I had been giving her about 2-3 tablespoons of tuna b4 her injections, however the vet wants me to give her less; I tried mixing a little bit of tuna with the DM, but she wanted no part of it. She looks even thinner today than Monday. How can I get my baby girl to eat?