it is a simple problem if it is gastritis. you get an endoscopy of the stomach done and confirm whether there is any ulcer or not and where is the gastritis. most of the time it is because of the H.pylori infection. go for an anti H.Pylori treatment it is you have to take 3 tablets in the morning and 3 tablets in the evening. for 14 days. there is one tablet of the three which is efective only when taken in empty stomac it means you should not eat or drink for 2 hours before and 2 hours after consumption of the tablet. the disease will get cured
1 Doctor agrees with this answer
1 Doctor agrees with this answer
Drink a Soda with little lemon in it, it is very good for gastritis