Does anyone else ever feel a little nauseous after sex? My boyfriend and I have been together for years, and it doesn't always happen, but tonight we had a really great time, and I just feel a little sick now (not to the point of throwing up though). It usually lasts a couple of hours. Even with my ex, I remember feeling like this from time to time after we did the deed. AF due in 4 days. Let me know what you think ladies! Am I the only one?