I have been to Iraq for a 1 year tour, and 1 month prior to coming home I started having tightness and pain in my back, below the shoulder blades. Ihave had mris, xrays, blood work,bone scans. and they can't find anything.. The only abnormal finding was a 3mmnodule on my lung and my blood work showed a slightly elevated IGg. I stil have pain every day. Can you tell me what else I can do to find out what is causing this pain?