Thanks for writing your query.
After reading your post, it seems that you might be having gastritis
You should get yourself clinically examined and investigated.
along with Liver Function Test ( LFT ) will be helpful.
You can take an antacid like Omeprazole
40mg once a day before meals along with Domperidone
30mg for relief from your symptoms. A digestive enzyme
preparation containing pepsin and fungal diastase after meals will also be helpful.
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 self medications, especially pain killers and steroids.
6.Avoid excessive gas producing foods like peas, cabbage, legumes, etc.
7.Avoid eating fast and talking while eating.
I hope this is helpful to you.