Hi Judych, I had this problem last year and it occurred every time I ate though. (my back would hurt) I wld back to my lap band surgeon, and they put me on some ulcer medication and it went away. But I fould out that I had a bateria infection due to a possible hernia on the top of my band.. and the only way to be for sure was to have them go in and if its there, they'd fix it... and replace or remove band another option was to replace the band with the sleeve. And so I had the sleeve put in Dec 2012. I would suggest you have them to a endoscopy, which is something you should have once a year with the band, that no one told me about.. but its like an xray where they look down your throat and make sure everything is ok. It is very painless & only takes abt 5 minutes or less.