I only rarely have the heartburn unless I'm running. Stairs make it even worse, so I got to think it's the bouncing of the stomach that make it present. I used to ALWAYS be able to eat and go right into a workout/run. In fact, being insulin dependent it was more of a necessity.
Hadn't thought of green tea. I'm going to try to work that into a routine about 2 in the p.m., after the stomach has done some work on the lunch.