The stress that caused you to be placed on the morphine pump, the probability that you have a genetic disposition to diabetes, triggered by weight gain, can be surfacing as diabetes. After returning to your normal weight and following a healthy lifestyle, blood sugar can decrease. ​Many people have had blood sugars over 100 but under 126 for years - known as pre-diabetes. Pre-diabetes is just now being more aggressively focused upon diabetes prevention. A good plan right now is to align yourself with someone who understands healthy eating for diabetes, and become as active as you can.