Hello Since diagnosis is clear and you are also taking clarithromycin, metronidazole and pantoprazole . So beside these measures may be useful for you. Try raising the head of your bed about 4 inches with blocks. It also might help to avoid eating or drinking for 2-3 hours before you lie down. To help control stomach acid one should not drink alcohol or drinks with caffeine in them or eat chocolates or greasy or spicy foods . Also avoid pizza , burger . Over eating is another reason of such pain ,so try to control it . Sometimes tension and anxiety also causes such symptoms , so also be careful. When such patient visit I advise rebamipide 100 mg two tablet twice in day for 3-6 months . But this is a prescription drug so consult your treating doctor before any treatment . Clarithromycin and metronidazole has completed , so no need . This is my experience , so be careful . Good luck.