How do i get rid of my lower back pain? i'm in pain constantly. pills, injections and physical theripy do not work.

First, you need a confirmatory diagnosis, as to status of lumbosacral vertebrae and discs, but also whether you might suffer sacroiliac dysfunction, or even such unexpected entities such as endometriosis or ovarian cysts. Once pinned down, appropriate therapeutic intervention may proceed. Sounds like the cart has been put before the horse, so far.