question about stomach pain? worried!

I had my surgery done 3 years ago on my way no I came back to the pounds By my own stupid in this evening hard candy! I was wanting to know if anybody had a endoscopy or upper GI and had a problem with pain right side of stomach after words? Have been having pain on my left side by my belly button for about 2 months it started after I had that procedure done I've had x-ray and now I'm anemic and I can't get rid of this sharp pain when I sneeze. Or push to go #2 I kind of think that maybe I have a leak now because of the upper gi?? I don't know but it started right afterwards Do u think that could happen??

Barium causes constipation, perhaps that's the source of your pain?