Did you just start off taking both? That could be the issue. I started out with one, at night just before bed, so if I got nauseous I could just curl up in bed. After about 2 weeks I started taking the second pill.
This time I started with one pill a day for two weeks, then two pills a day for two weeks, then 3 a day. Last time I rushed it and only waited a few days before adding another pill and paid the price. Another thing that helps is to cut back on the sugar, high carb processed foods, and fried fatty foods. It helped a lot.