Hi, yes....please. I am a 60 year old female. I have always been active and walking 4-5 times per week, riding my bicycle, and swimming in the summer on top of that. This past year my stomach literally started to swell up. From the side, I now look about 7 months pregnant. I had surgery for pelvic prolapse, and started walking again almost immediately. No change in my stomach's appearance 2 months later. What could be causing this huge stomach?