I have constant gas that build and can be painful. i get shooting pain in my arms/legs/chest. i only get relief when expelling it (from both ends)?

I see: Simethicone (Gas-X) can help for some people. A better bet is keeping a dietary diary or log and keeping track of what you eat and your degree of gassiness. Use that info to find a pattern and discover what foods cause this problem for you, then avoid those foods. If you have issues with constipation and/or diarrhea also, this could indicate IBS which would be treated a little differently.