EE WAS MOVING (WALKING) A LARGE STONE TO PLACE IT ON A NEARBY PALLET. WHILE HE WAS MOVING IT HE TWISTED HIS BACK AWKWARDLY AND FELT A TWEAK IN HIS BACK. AFTER PLACING THE STONE ONTO THE PALLET HE FELT A PULLING SENSATION IN HIS BACK. SHORTLY AFTERWARDS, THE EE DESCRIBES THAT HE WAS HAVING ""MUSCLE SPASMS"" AT THE MIDDLE TO RIGHT SIDE OF HIS MID-BACK.