I experienced what I thought was gas buildup in my left side just under my left breast, which then spread around to my actual side, then to my back. Then the pain spread across my front side, wrapped around my side and went to my back. I became instantly nauseous, notable sweatiness from my head to my feet. I felt as though I would vomit...but did not. I went immediately to bed & after about 45 minutes, the pain went away. I was FINE...until somewhere in the middle of the night when I started having the pain, but not the sweating or nausea. Since this is my left side, not my right...do you have any ideas what direction I should look to when I see my doctor? All of the usual suspects (liver, gallbladder, appendix, pancreas) are on the opposite side of my body.