Question: I did IP in 2017 and had really good results, unfortunately due to stress from my old job I gained it all back. I tried to start back on Monday and I drank a pre-made chocolate shake and 30 minutes later my stomach hurt so bad. I thought maybe it was because I took my vitamins an hour before my shake. So Tuesday I took my vitamins with my shake and my stomach hurt again. The first time I did IP I didn't have any issues. Did they change formulas? Does anyone have any recommendation to help? I really want to give this another try. Thanks