More answers, though partial. Shadowicewolf: You were right: it is a hiatal hernia.
I had my gall bladder out 16 years ago, so it can't be that. But I would like to have an ultrasound on the left side to see if anything's inflamed.Throwing up bile seems like more than a hernia? The endoscopy was not fun - glad that's over!
I am going to try Lactaid this week and see if that helps with the nausea. Also taking Prilosec. I'd rather do things naturally, but I don't want to feel bad any longer.