I have pain over my lumbosacral area since one month. The pain comes when I try to bend forwards. But goes off when I stand up or in a erect position. But reproduces when I try to sit down or bends forwards. Along with that I have pain over my left ulnar styloid process. Both the complaints have the same duration. There is no history of trauma I took xray lumbar spine and showed to one of friend who is a general practitioner and he said me in the xray normal curvature of LS spine is lost and there is flattening of LS spine. What could be the possible etiology behind this?