I got sciatica back in early 2011. I wanted to get bigger, but I was unemployed at that time, didn't have money for daily recommended protein intake, my body was extremely weak...I was overexercising and also using poor form. A disc in the spinal cord finally slipped while I was doing, "bent over rows" in poor form. The pain was really something else...I couldn't sleep, I couldn't sit, I had to walk around hallways to ease the pain. I went to the doctor but he couldn't do anything since I didn't have insurance.... I actually wrote a professional exam with that pain, I couldn't even sit but somehow I managed to write it and get 74%...
Yoga finally cured me (thank you Youtube!!!), took me about 6 months. And for those who don't know, when the disc slipped it started rubbing a major nerve that runs down to the legs. In my case, the pain ran from the lower back down to one of my leg. Nerve pain is extremely painful!