I awoke at night a week ago with a burning sensation in my stomach and it would groan and moan for a while. Also felt a little nausea but never expelled. I feel fine but it happens almost every night when I am sleeping and will wake me up usually around 2-4 pm. It comes and goes and really does not hurt just uncomfortable. Been taking antacids and Pepto-Bismol tablets seem to help a bit and as soon as I think it is gone it will start up again. 46 year old male was on some pain medication for a while because Kidney Stone, Hydrocodone was the name and Keltonic. Could that of messed up my stomach ?