Sharp Pain In Lower Right Back 2 Days Now I Get A Very Sharp Pain Lower Right Side Of Back Below Waist?

2 days now I get a very sharp pain lower right side of back below waist? - sharp pain in lower right back

Can bend so painful that I stand or sit. I can lift my right leg I can feel a slight pain in itself. I raise my pain in his left leg did not even feel it. Help! Naproxon does not work, 2 - Aleve does not work. It has no effect on my driving and walking.