thank you for your query.
You are suffering from gastritis
and stomach fullness.
You need to take small frequent meals.
Have an interval of atleast 3 hours between your last meal at night and going to bed.
Do not take heavy dinners.
Avoid oily, spicy and greasy food.
Do not use excessive chilly in your cooking.
Also, increase your intake of yoghurt, dahi etc.
Do not eat outside.
If you are not relieved, you can take antacids after consulting with your doctor.
If problem is severe, have an ultrasound
to rule out gallstones.