I was banded a year and a half ago, just over the last two weeksiI have vomited a couple of times quite bad then when I eat later it feels like its in tha back of my throat and I keep burping, I went o my dr who gave me Zantac for acid but its not burning it's just sitting there, if I have a coffee I burp it up have to sleep sitting up as if I lay down I feel it's going to come up again, not vomiting though!!! Any ideas anyone please