I am suffering from lower back pain and stiffness. When I wake up in morning I fell lower back stiffness a lot and by the passes it reduces. If I do some stretching exercises then it reduces but not getting rid of it completely. Suppose I m doing some work, that time I will not feel pain or stiffness but if I sit on the bench for some time then while standing, I can't stand straight. I feel pain in lower back but after 30 second s it reduces automatically. please suggest some treatment or doctor