Hello
I had gone through your question diligently and I will try to help you out in best possible way
This can be caused by
Acid reflux or
indigestion and
food allergy, which can be manged with certain dietary and life style modifications like
Avoid egg and egg products for a while.
Avoid fatty fried spicy and junk food or carbonated drinks
Have lots of fresh fruits and vegetables
You can take curd, cold milk or fruit juices
You should not stay hungry, have something to eat at frequent intervals because hunger increase acid production
Avoid smoking and alcohol
relaxation exercises to allay anxiety and stress.
Don't lie down immediately after eating something
If you can provide me more details like your age and presence of any other metabolic illness like diabetes or thyroid and liver disease , I will be able to help you better
In my opinion you should
consult a gastroenterologist for an endoscopy and X ray chest to rule out
hiatus hernia if it does not improve.
Hope this answers your question
Thanks and regards