Why take chances ??
I am not a player any longer but I have had back pain for a number of years, off and on,---went to the doctor yesterday with is because ALL OF A SUDDEN THE AREA TURNED BLACK AND BLUE-- no pain involved as he probed but he x-rayed--- found what may be a fracture or compression in the lower lumbar area---may be headed for a MRI/CAT Scan in a few days---but at least we have the finger on the pulse
Make sure you have a doc you can trust and talk to openly---don't guess as to what it may be