Suggest Treatment For Flatulence And Gastric Issues

Hello Doctor,My name is James. I am a healthy adult of 26 years old. Last year I had some gastric issues and flatulence issues and I took over the counter Omeprazole and Maalox Plus and the symptoms went away. This year roughly about the same time I started having the same issues,mainly flatulence that sort of starts from stomach and I could feel the air going all the way down. So i decided to go to a Doctor, he prescribef Tarivid and risek for a period of 5 days and all of the symptoms subsided,but on next consultation he asked me to take Proton and Dompy for a period of 15 days, from the 10th day following this regime I started getting the symptoms again( mainly flatulence) and he scheduled me for an Endoscopy. So i decided to take a second opinion and the next Doctor put me on a course of Nexium esomepraole for a month and said if it was necessary the endoscopy can be done, I would like to know if I am getting the right treatment as the seond initial doagnosis was GERD, n now 4th day into the tablet,the symptoms are still persistent. Thank you for your council.Kind regards, James