I personally am VERY VERY worried about this.
I am basically "allergic" to sugar and the carbs. When i start eating them I put on the weight in record speed (especially if i am off the pill, on the pill i dont really gain, but I dont lose.) The only success that i have had in the past is with taking Meridia and being very strict no carbs, no sugar. Obviously, you cant be on Meridia forever and eventually you gain a tolerance, which is what happened to me.
The craving are so hard, Ifeel like bariatric surgery is my only hope.