I feel your pain. I am on day 4 I have 10 more days to go. I can have up to 4 shakes a day and 2 yogurts right now i have averaged 3 shakes and one yogurt. I buy the greek ones with more protein. my stomach hurt really bad last night i just went to sleep . when it gets bad i try and get my mind off of it. either I find something to do , go to work, or go to bed