I don't suffer from acid coming up. But what does happen occurs after a meal where I drink a lot of water. For the first hour or so after the meal, if I bend over the stomach contents starts to flow up my esophagus. It seems like mostly water. Maybe because if flows easier. But no aside burn that I notice. Another things happens but not quite as often. I swallow water and it seems to only go down part way. I can easily contract my muscles (not sure which ones) and the water comes up again. It's as if I have to make extra effort to swallow. I can think of two possible causes. One is ME, which is why I'm posting here. Does this happy to ME patients? Do you know of any fixes. The second possible cause it the radiation treatment I received for tongue cancer. There is collateral damage with one possible scenarios being that nerves from the brain down the neck that control the esophagus are damaged and so it doesn't close up to keep the stomach contents from flowing out. As for water being only partially swallowed, this can be caused by the radiation treatment as well.