Hi I am 26 years old male, I fell down from bike 2 months back and my left knee and left leg are paining from knee to back buttocks left side when walking for long distance and after standing up after sitting long, I consulted doctor and he took x-rays to my knee and back he told there is no sign of fracture and he gave me pain killers but still I am carrying pain, when I keep my hand on knee and try to move leg up and down I can sense some vibration tick tock like that and leg is getting pained when I try to lift it up please advise me.