I don't know if its acid reflux but it doesn't happen every night, usually just once or twice a week. It's so annoying. Not to be gross but because it's usually 4-6 hours after my meals (I don't eat later than 7pm), no food comes up, just liquids, and it's like totally coming out of my nose, and mouth. I just don't know what is triggering it. Today I decided to start a food journal, that way next time it happens, I can cross reference and see what kinds of foods can be triggering it, if infact it's food related. I have no idea. On top of it I have a lump on my thyroid, so my doc says that could be causing it too.