My diabetic cat was doing so well that he caught a mouse and brought it to me. My first instinct was to take it away from him, but I didn't want to discourage him from hunting. Two days later he was vomiting, wouldn't eat, etc. I used medicine from the vet to stop the vomiting, gave him subcutaneous fluids, and forcefed him. He died exactly one week after eating the mouse. Now I'm obsessing that I should have taken the mouse away from him. Could the mouse be what killed him? I know that I can't do anything to bring him back, but it driving me nuts wondering about it.