What Causes Abdominal Pain And Bloating While On Insulin For Diabetes?

I am type II diabetic on 2 types of insulin, overweight by about 80 lbs, and live a mostly sedementary life. With that said, my eating habbits and exercise has not changed dramatically or even slightly, yet in the passed 6 months I have gained almost 50 lbs, have abdominal bloating after every meal, whether it s salad or pasta, and in the passed month or two have noticed increased abdominal pain when bending over to pick up something whether it be sitting in a chair or standing, and the pain is severe and sharp like a charlie horse cramp in my intestines, my gall bladder was removed 12 years ago, i have never had bariatric surgery. The pain feels like my guts twist and is happening more frequently, whether I have just eaten or on an empty stomach. Have not been tested for thyroid issues, but the fact that i have been anywhere from 40-60lbs overweight most of my adult life, it concerns me that i have gained an additional almost 50lbs and now suffering abdominal pain constantly. last A1C was 9, but I have since upped by insulin since august, seems to keep sugars much more controlled.