It started around the kidney area, and moved across the lower back, up the left side and across my shoulders. By day 2 I could barely move. I went to the doctors, they did tests but could find no reason for my back pain. Nothing seems to work, heat packs, cold packs, anti--inflammatories. I will also get a sharp pain like a spasm in my lower back. It actually feels like my lower back has crumpled in little pieces. I stand and it cracks alot. I sit and it feels like the bones are all trying to slip into place, with sharp pieces.