Thanks for writing your query.
After reading your post, it seems that your symptoms might be due to gastritis
I would advise that you should get yourself clinically examined and investigated.
may be helpful in your case.
I would advise that you should take an antacid
40mg once a day before meals along with Domperidone
Following precautions will be helpful :-
1.Avoid spicy and oily foods.
2.Avoid being empty stomach for long periods.
3.Avoid mental and emotional stress.
4.Avoid smoking and alcohol, if any.
5.Avoid eating fast and talking while eating.
6.Drink lots of water daily.
Further medical management can be planned after knowing the reports of the endoscopy.
I hope this is helpful to you.