my twins sons adopted 2 brothers. our "feline twins". Snowbell the pure white cat has never had health issues. his "twin" brother fisher the all black cat has only 6 lives left! (funny! after each "life" lost he has grown little white patches. one on the end of his tail, one on his chest and now one behind his ear!) he has had diabetes for roughly 6 years, 4 units 2x's a day. Recently his counts were into the upper 400's and even low 500's so the vet had me completely change his diet to all wet only. he has taken to it well although he always seems to be starving, going so far as hunting down his brothers dish which we now have to hide! fisher likes to eat all at one time while his brother likes to save some for later! our vet told us that many times a cat will change his diet and lose his symptoms. He seems like his old self until this afternoon. all of a sudden he is acting weird, just walking around and sniffing everything. non-stop. the walls , our clothes , practically all of our wall-to-wall carpet. my question is, if he has regulated his sugar through diet, would the insulin cause him to be acting this strange? I was always under the impression that if you give insulin to someone with normal blood sugar that the insulin would cause them to be lethargic, and unresponsive. this seems to be the opposite. One thing to note, is, I cannot remember if I gave him his injection this morning. it is such a regular part of my morning routine, and I had a tough time waking up this a.m. I just can't remember. If I didn't give him his injection would it cause him to be acting so strange? He was sleeping when I first got home this afternoon and I didn't notice anything odd til about 4 p.m. Any Ideas or comments?