i was just told my cat has diabetes. and her back legs are now going lame. is this normal?? my cat is 8 years old and she is such a sweetie.. she doesn't show any discomfort.. but i know she cant be happy. she cant jump anymore and only walks a little then has to stop and sit. the vet said her legs may not get any better. i want to know has anyone else had this happen to there cats?? I'm upset about this and its breaking my heart. Ive been giving her a high protein and low carbohydrate diet.. what else can i do... she is my baby .