Hello, I was in a car wreck about 8 years ago, my L4 and L5 discs are gone. I live with bone to bone contact daily, latley I have such pain that I can move at all or it will aggitate the pain worse, my feet are always cold , and one of my testicales are constanltly numb, and if I am sitting typing on a computer and adjust my butt in the chair I will get an erection similar to morning erections super stiff/hard. I know that something in my spine is pinching a nerve so what should I do? help