Mysterious asymptomatic pain
I am suffering strange pain in my back, chest, head, forearm and leg. The pains occur for no reason, there is no trauma or injury. No bruising or swelling or discoloration. Typically, the pain starts in one area, like my back. Usually last between 1-2 weeks, then subsides and then moves to another part of my body, like the chest or head. I had an MRI done on my brain which came back normal. I have been tested for autoimmune diseases and a rare form of cancer and all test have come back negative. The doctors simply don't know what is causing the pain. The pains feel like I've been hit and ithe area is tender to the touch. Sometimes I experience shooting pains, like in my head, which are quite severe. So far, I've had several episodes since June 2011. One time I suffered double vision. My eyes were examined, nothing wrong. The double vision resolved itself after 3 days. Can anyone help me?