I only vomited once in the first trimester. A few weeks after I hit the second trimester, I started vomiting every morning. For me, it's caused by excess mucus production from being pregnant. When I puke, I throw up either phlem or bile, not food. I didn't even notice that my nose was that much runnier (because it was all running into my stomach, yuck!) For me, the only thing that helps is just going with the gagging and throwing up the mucus. Then I am nausea free. I try to blow my nose alot and use saline nose spray to keep things loose. It has slowed down now to maybe once a week, but is still definitely there. Hope this is helpful, and even if your reason for nausea is totally different from mine, I hope it helps to know that there's someone else still throwing up.
Mady, mom to : Rosie (4), and expecting someone new : in 1/10