I pinched a nerve on the left side of my lower back while working out. I thought it was okay after a couple days, but now when I do a work out that requires some stress on my lower lack, it feels like an electric shock running up the side of my back. Any helpful remedies for that? Or should I just rest up? Also, I think it effects my overall performance, it seems like I got weaker and my endurance isn't as high.
Thanks in advance.