in my sixteen while playing i climbed on to a tree to get the ball and jumped from there it was some 10 feet height, and after a week i developed pain in my lower back, i ignored initially but as it became more and more severe, i took tab nise
from chemist. it worked for a month and half, but latter pain came back again. this time i was forced to go to doc and they did MRI
scan of the back and found there is a tear in my back muscle. finally 3 months rest and latter some exercise was needed. thank god no surgery.now I am pain free. you also should go to doc and get the MRI of back done and find out whether there is any tear in muscle or not.