Why does it burn constantly under my left rib stomach area daily for almost 3 months now. Seems to be when I eat too. I m 5 4 103lbs and age 32 Male. It s been going on for almost 3 months, I woke up one day dizzy and threw up. A few days later I tried to eat a bowl of cereal and 1 bite made my stomach bloat up and really quick and then I had trouble eating since, went to ER they said they thought it was GERD, prescribed me Omeprazole and it helped after about 15 days, ran out with no refills, and 5 days later I got more. the 4th and 5th day off the meds I started burning in my side again and it got way worse, I could barely eat and lost about 20lbs in about 12 days. Had a CT Scan CBC and Thyroid test and it all came back fine. Would some kind of scope be the best way to go for this problem?