question: Hello, I have had a stomach problem for a week now. It feels like burning in my upper abdomen. Worse at night. I am worried because 2 years ago I had an operation where I had a 2 inch mass removed from my intestine. It was embryonic remnants that caused my intestines to go inside themselves. The doc who did the surgery said it would never happen again. But this pain feels like it did before the operation. Sort of like acid reflux?