Hello. I've recently put on ALOT of weight. Strange things have been happening with my upper stomach, Not sure if it could be related to the ocasional GERD I have or the amount of weight I've put on. Right now as I sit here, it feels as if I have a lump in the middle of my upper stomach. I can't feel anything to the touch and it's not soar at all, but just a feeling like there's something there. Ocasionally, it will feel like something is moving. A couple weeks ago I was on my exercise ball, on top of the ball on my stomach rolling back and forth...all of the sudden it felt like something just cramped up in my stomach (almost like a twisting/strangling sensation). I immediately got off the ball and laid flat on the floor in pain until this pressure/pain eased away, took a minute or two. A couple days later I tried the same move on the ball and the same thing happend. Almost feels like something is moving into a position where it shouldn't be. Not sure what this could be. Any ideas???