Lower back pain

Hello, I am a keen footballer who up until about 6 months ago played 3 times a week, twice on hard ground and once on soft. I started to developed tingling in my left foot and toe and LHS lower back + hip pain. Been to two osteopaths and two physios and have nowe been told I may have a stress fracture in my back. Has anyone every had one of these? How long do they take to heal? Is there anything I can do to help the healing process? Not playing football is slowly killing me!!!