I experience pain in my lower back and down my leg when i sit for 5mins or longer, it started getting worse the last week until where my leg numbs. i dont sit much during the day and i am very active but it is very quickly getting more painful.

Numb/pain/leg: Sometimes compression on the discs irritates the roots, trunks, divisions, and cords stemming from positioning. A variation of sciatica is possible, as well as piriformis syndrome where a tight band of muscle compresses the sciatic nerve in the buttocks. Tension on taut muscle bands can compression several nerves leading to numbness and pain. Rule out other conditions. Consult your doc-