that sounds pretty serious dude...
you say it hurts when you touch your stomach?
that could be like your appendix man... if you start feeling feverish, get to the hospital pronto.
but if its just nussea and you feel like puking, then i recommend "gravol" that shit works and will make you very sleepy, so you'll be out fast and will sleep thru any pain.
i think pepto is more for diarreah right?
if you arent shitting, then i wouldnt take the pink stuff.
what did you eat? anything out of the normal or under cooked?