Respected user , Hi Thanks for using Healthcaremagic.com I have evaluated your query thoroughly . * The reason of persistent symptoms are due to underlying cause is not simple gastritis there is something else which needs to be evaluated . * Possibilities as - hiatus hernia - duodenal ulcer - biliary system obstruction - liver problems - diaphragm conditions - systemic disturbances of certain aspects - others . * Ask your doctor for its evaluation of the cause via ultrasound with or without endoscopy to confirm the diagnosis and management plan accordingly . Hope this clears your doubts . Thanks . Regards .