My sister's cat was diagnosed as diabetic last summer, was put on insulin, then about a week later, was taken off, as he was now normal. It's been a rollercoaster ride since. He puts weight back on, then loses it again. He was treated for a urinary tract infection, but that only helped for a short time. My sister had also tried different foods. After several trips back and forth to the vets, it was finally determined that one of his kidney's was three times the normal size. After tests to determine if the other one was healthy, it was found that both kidneys were cancerous.

I hope that Boris adjusts to all this and that there is no other underlining problem causing her diabetes.