Flexibility more on one part of my leg


Does any have this same problem, having one leg more flexible than the other? Prior to FB, I was not very flexible, but since I started FB 4 months ago, I am more flexible even surpassing my own expectations. But the problem is that my right leg is not as flexible as my left. It just won't bend as low as the left and when I try to force it, it hurts. To try to curb this, I spend more time on my right leg when doing any stretching routine. Does anyone have this same issue? If so, did it later pass?