Pain Swelling Numb. But no help found.

I'm a 29 Years old male, I'm not too sure what kind of problem is this, have consulted multiple physiotherapists, neuro-surgeons & physicians. It started 3 years ago while doing some jumps, I started feeling pain on the front hip join near crotch and for some days it was severe that I couldn't stand or move my left leg slowly i started feeling pain in my knee as well. Since then I've consulted general physicians & on request I got Xray done in which there were no minor/major bone injury was found, later I was prescribed with some of the medicines including pain killer, Optineuron & some others. Later when the pain was continued I consulted a physiotherapist who suggested me that there is no major problem & have suggested some exercises which I did but nothing found curing. later I consulted one neurosurgeon who again suggested me some medicines & I continued but no improvement found. Again I consulted a physiotherapist and I was suggested to some exercise but no help found.