Hi there Lisa and all. Where are you Peter?Well, to answer your question, Lisa, I'm not really sure. Haven't been diagnosed as such, but when I lay too flat, or on my stomach, I will be awakened in the night, choaking, with stuff coming up in my throat. It will happen every time,unless I have about 3 pillows and stay either on my back or side.My dad had the same problem. Hereditary perhaps?------------------"A merry heart does good, like medicine."