I had GBS 4/1/2001. I weighed 329. I dropped down to 223, but have had three children since. I've gained weight back up to 265 and can't seem to lose weight. I don't eat much and don't eat too much sweet foods, but I can gain 5 lbs overnight if I go out to dinner one night with my husband. Do I need to have the surgery redone since it's been so long ago?