Excessive gas formation and chest pain.

I have started my career as a Tax Consultant one year back and since that i have started sitting whole day long but after some time may stomach started irritating me with gas filled after lunch and this continues always till now but after some time whenever I have gas there is a pinching pain in my chest ; both right as well as left side but mostly in the left side of my chest ; this is happening for at least six months. I take omez and pan 40 tablets and unienzyme tablets for my relief but when I take these medicine I feel better for some days but when I stop taking these medicines then for 5-6 days all things will be normal but after that again my stomach starts bloating up again and it is filled with gas but on holiday i feel very free without any further pain and discomfort but the very next day at office I feel bloated again and there is a pinching pain in my chest ... So please help me out.of this situation as no medicine is helping me.