There can be possibility of gastritis and stomach ulcers.
You need to take a soft diet ,less of oil and no spices
Do a USG Abdomen and upper GI scopy.
Continue with tab pan dsr..take 1 hour before meals. Also you can take local anesthetic syrup like mucaine gel to reduce burning sensation.
Next Steps
get a ultrasound of abdomen amd upper GI scopy.
Health Tips
no alcohol, oily food and spicy food.