Hi. Thanks for your query. Noted the history and understood your concerns. Five years is a long time to suffer with heartburn without any cure or relief at least. You have already been diagnosed with fundal gastritis which in isolation is again rare to occur hence I would advise you the following in such a situation: Get a CT scan of the abdomen done to see for any mass in pancreas, gastrinoma or so, gall bladder or liver disease and get treated accordingly if found. Other contributory reasons are stress, anxiety, tensions, worries, alcohol, tobacco in any form and other things which you find to instigate or enhance the symptoms should be sought after and avoided accordingly to get a proper result. Continue Somprazo-L, Also take antacids when on empty stomach. All these things done together will surely help you to get well.