I'm not a very sexually experienced person, and haven't ever been in a serious relationship. Recently I started to hookup with a guy, but I'm planning to cut it off when I go back to school to date a girl that I'm interested in (think i'm bi). What's been bothering me about both partners though is that I get extremely nauseous whenever I get affectionate with either person. Even just kissing is enough to sometimes make me dry heave or actually vomit. 

I think it might be some form of relationship anxiety, rather than any physical illness, since if I drink a bit, I feel completely fine. I'm attracted to both people, but feeling like crap when I see them sober and trying to remedy with Pepto-Bismols all the time isn't very fun :( The nausea typically lasts a little while (sometimes until the next day), but goes away when I feel more relaxed (like when spending time with close friends/family).

If anyone has a similar experience or symptom I'd be interested in hearing how you manage it. I'm not looking for a diagnosis, just not sure how serious this is, and whether its worth it to try and talk to a doctor about it. I don't experience anxiety or nausea generally from anything else, and so I appreciate any advice since this feeling is new to me.