Has anyone in this community had pain that seems to just come and go and the doctors can find no reason for it? I had extreme muscle pain in my arms and under the clavicle on both sides of my back. It only lasted for about 3-4 minutes and then it was gone. None of the doctors had ever heard of it before. About three weeks after surgery I had pain in the middle of my back and on the left side (flank) -- then it moved up my back about the left side of my left breast and into the left shoulder. it would especially hurt when I took a deep breath. Then all of a sudden, it was gone, and I haven't experienced any pain for two days. Are these just the result of the surgery? Would appreciate any info.