Our kitty Samson (1 yr old) was diagnosed with DM at the end of Aug. The first vet tried Vetsulin injections then Glipizide tabs but nothing seemed to work. He switched the cat to Novolin N. He is now on 7 units 2x daily but glocose levels are still running 500+. He is eating Hills Rx W/D abt 1 oz wet and same dry food abt 1/3 C 2x per day after his shots. He is gaining his weight back ( went from 10.1 to 8.1 and now back to 10.5), he’s playful most of the time, his coat looks great, and his litter box seems better (not so much sticky urine). First vet suggested internal medicine vet (which we can’t afford). We switched vets and new one is quite perplexed by it all. Does anyone out there have any suggestions? We’re getting a bit desperate - especially since he is so young.