There is disc prolapse at multiple levels most significant being at L4-L5 level
That may be the probable cause for pain in leg region
Next Steps
You should visit a Spine surgeon and get clinically evaluated to find out if there is any weakness developing because of this issue.
You need to take rest, start analgesic and muscle relaxant tablet, apply analgesic ointment locally, use Lumbosacral belt for support.
Health Tips
Avoid forward bending, avoid stair climbing, avoid Indian toilet.