Welcome to HCM.
Your back pain
is due to continuos sitting on chair with improper position.
Use full back seat with proper back support.
Acidity can cause chest pain
.Avoid oily,spicy junk food ,take more liquids,water.
Take high fibre diet like fruits and vegetable.Avoid red or green chilly in your diet.
Start exercise regularly.
Consult physician for better medical management.