bleargh

nausea.

medically, it can be a symptom of a disease or the side effect from the meds (really, almost every other drug can cause nausea).

an unease that brings about the urge to vomit.

a sensation that crops up when you feel truly disgusted.

not something anyone should feel at 10 minutes to 5am, just because they're subjected to the squelching noises of an inconsiderate subhuman life form devouring grapes and unfortunately, not choking on one.