We adopted a special needs diabetic cat about a year ago from the shelter. At the time he was not on insulin and weighed 24 lbs. After starting him on Insulin and a special diet, he dropped to a very good 14 lbs. Over the 2 months he's began gaining weight again at a very rapid pace. His diet and exercise have not changed other than now that he's back to 20 lbs, he sure doesn't want to play as much or as long. The two vets, I've taken him to, don't seem overly concerned and both tell me his blood levels are fine, but I'm worried. I'd sure love to hear anyone's thoughts about this, even if it's just that I'm over reacting.