The other night I fell off roof just below the second story window, I managed to get up and walk back to my room, however in the morning I found myself unable to stand up or walk without feeling extreme pain on my lower back, I've been laying in bed for the past day now unable to get around without crawling in a special way; which puts strain on my back so I chose to stay in be, I still feel mild pain while laying down but nothing too serious probably a 4/10 scale while laying down.
Any suggestions as to what this could be or how I should approach this issue?