- Constant dull pain in chest. It is always in the middle area of the chest, sometimes more on the left and other sides more on the right. - Other symptoms were wind, acid reflux, nausea, stomach and back pain but Omeprazole has mostly stopped these symptoms although there is still a lot of burping going on. - Currently waiting for gallbladder removal surgery. - Blood test, ECG, blood pressure, etc all came back normal. No scans or x-rays done yet. - Doctors think it's probably a gastric issue but haven't ruled out a respiratory problem. What could this be?