Any advice appreciated

So on 8-8 I took a test. It showed up neg. which was a bummer of course. But I still need to find out why I have gained 10 pounds in a month and my stomach hurts sometimes. grew a cup size and eating everything. Have heart burn soooooo bad. Always needing to use the bathroom. Sometimes I catch myself rubbing my belly like pregnant women do. But only thing is is that I'm not. Should go see my gynecologist. Imnot scheduled to see him for another couple of weeks it would be 3 months after my surgery when he did a laparoscopy. Need some advice.