I am 33 and have a herniated disk at L5/L6. Yes, I know, most people have L1-L5, but my scans revealed that I have an extra lumbar vertebra. I had my very first cortisone injection today. I was warned that for the next 3-4 hours my right leg would be weak and I should take it easy. It has now been 9 hours and my leg is still weak, my foot is almost completely numb, toe curling and flexing is very difficult and the right leg and foot are both significantly than the left. Is this normal following an epidural injection?