I am suffering from some pretty awful all day M/S right now, and I take my pre-natal vitamin just before I crawl into bed. Lately though within minutes of swallowing it I am on my knees hugging the toilet with the most horrible nausea ever, praying I'm not going to throw-up my anti-nausea pill. I tried having a snack first which helps a little bit but I still feel sick after taking it. The last few nights I just couldn't bear it and just took folic acid on it's own. This went MUCH better.

So my question is, if I'm temporarily not taking my pre-natal (once M/S lets up I will try again), and just taking the folic acid, are there any other vitamins that are really important for me to be taking. What is it in the pre-natal that causes nausea?