It's probably from your cold, I know when I feel generally unwell I feel sick to my stomach sometimes... I doubt your going to throw up.. SV* come on very fast and unexpected, now you've been feeling nausea for that long it's not a SV*, you would have either had D* or V* by now.... have you been stressed lately or had anxiety? cause both of these things can cause nausea.. If you ask anyone on this site they would all tell you it's been to long and something would have happened by now if it's a SV*.. What helps with my nausea is benadryl if you have any take 2 and it works really well for me.