I too for the past 2 months have had this annoying cough(out of the blue) but mine is at different times of the day or nite, but at nite I wake up coughing and vomit not food but what seems like thick water!! I take prevacid 30 mg daily. I was not sure if it was allergies or a problem with my band. I was banded 7/13/05 and now I too have days that I can eat anything and everything and days that water gets stuck! What's up with that????