Cookie turned 15 this year. Back in the spring she was diagnosed with diabetes. I was told she was underweight to begin with - only 4.26 kg. But her sugar was up at 15. She's on Lantus. She was on 3 units twice a day for a few months. When I brought her back in for a checkup, they noticed her numbers dive to a 3 at the lowest point so they dropped her to 1 unit. (yes there were a few other vet visits in between to make sure 3 units was right for her and i was told it was). (at some point I dropped her to 2.5 myself because something didn't seem right.) She's lost a ton of weight (3.8 kg at her last appt). I can feel her ribs. Really feel her ribs. This doesn't feel right to me. Her appetite is not always the best so I've stopped meal feeding her because I don't understand what's going on. My vet indicated she may have 're-set herself' but wasn't prepared to take her off the insulin entirely. Is she still getting too much insulin? Can I be feeding her more often, trying to get her weight up? Is this just the senior years? No, I'm not set up to do home testing. If I take her off the insulin and feed her as often as she wants, am I doing more harm than good? Please help.