Things that give me heartburn:
*bending or leaning over (if standing or sitting)
*changing positions/rolling over (if lying down)
*not eating for too long
*eating peanut butter, oats, mint, or anything acidic (vinegar, citrus fruits, tomatoes, etc.)
OK, that's probably not a complete list, but you get the idea. I seem to have heartburn most of the time these days, and it gets so ridiculous that it wakes me up at night. Tums and other antacids seem to be my constant companion. The problem is that--being pregnant--I'm only allowed to take a limited number of them a day. So I try to ration them out for when it gets really bad.
If all the old wives' tales (and my first two pregnancies) are to be trusted, this baby is going to be born with a head full of hair.