I'm just under 4 months as well. I do take a ppi, which others above have suggested. I don't feel nauseous..just "icky" after I eat some foods. I log everything into my fitness pal and have eliminated some foods that just don't leave me feeling good afterwards. Many of the foods that don't agree with me are carbs (bread, tortillia) and some are meats. At this point I call chicken "kickin' chicken". I weigh and measure everything that goes in my mouth and that seems to help as well. Are you tracking what you eat and how much? Are the certain foods that are making you feel this way? Do you have a calorie and prot goal each day? I would hate to think you are surviving on just diet snapple and a couple of bites of real food a day. BTW.. Congrats on your weight loss.