with both of my pregenancies oys, I had heartburn and allday sickness from conception until birth.. ugh... BTW, 1 kid had a head full of hair, and the other was bald until he was nearly 2...
if its preg. related, then some of the options above are the best choices (I think I lived on Malanta - yuck!) if you have it other times, then see a Dr.
I ignored years of heartburn (attributed it to just being fat, eating spicy foods, etc and now I have barretts escopagious (however you spell it) so don't ignore it...