I "popped" my lower back doing very heavy deadlifts and now it's very stiff on my lower right back. I actually heard it "pop" when I did my lift and my whole right leg went numb and started to tingle. I have not been able to lift now for almost a week. X-rays were negative. My doc said I strained my ligament. Anyone else have this injury? how long w/o lifting? I am very upset about it, I am in the peak of my cycle too!!!