Is it possible to get pain from gas that shoots from the stomach to the upper back (left side) or to the upper chest muscle just under the collar bone and into the neck and jaw? This happens maybe once a month, for four or five minutes. It's not a feeling of pressure, so I don't think it's my heart. (I'll be seeing my heart doctor next month, though, and will ask about it,) The pain is sharp and cramplike. If I drink water or pass some gas, that seems to relieve it. Sure is scary, though, and I'd like to know whether it could just be gas. Any ideas?