Hi thanks for asking question.
You have bloated abdomen because of
constipation related functional bowel problem.And because of this gastric problem you have reffered
chest pain.
I want to give you few suggestion below to relieve gas and constipation like symptoms.
Drink more water daily.take fruits more.
Fiber diet taken more like apple, whole grain , wheat bran , beans etc.
Ginger tea and chamomile in tea useful.
Digestive enzyme or fiber supplement will be useful.
Cooked oatmeal useful in sooth stomach.
Take green leaf veg.
Avoid smoke and alcohol.
Regularly do 30 minute running.
Mostly this will help you.
Along with this take
omeprazole for few days.
Fatty food and fried food taken less
If still problem then USG of abdomen done.
If still cause unclear and symptoms increasing then
endoscopy examination useful.
Wish you good health