Diabetic Retinopathy Treatment Care

Our mother dog died last June from diabetes and I was wondering if her son can develop diabetes also. It happened so suddenly. She always had skin problems and bad breathe. She gained weigh after we had her spaded. She was never a real active dog. I feel so guilty because I didn’t recognize that she was that sick. I don’t believe the vet ever checked her for diabetes.

My cat Maggie was diagnosed a few months a go with diabetes; she is sluggish, and whenever she tries to get down from a high place she just kind of flumps down onto the floor. Help?