I have pain after eating food, over the abdomen left side.I am suffering from this problem since 4 years ,when I used pain killers at that time.I had my endoscopy report erosive antral gastritis,duodenitis first part and used HP kit 4 years back.6 months later I did my barium meal follow through,report is normal.But the pain is recurrent every one or two months ,I had to use pantoprazole ,antacids 15-30 days every time ,it had relieved ,but pain occurs again recurrently. Why the pain is recurrent, what can I do for my problem...