I have had low back pain for 3+ weeks. I have been on the 6 pack of steroids, went to the ER and they gave me steroids through my IV. Saw my Dr. and he has now put me on a 14 day steroid. Today I bent over and the stabbing came on and I fell to the floor. It is the worst pain I have ever experienced in my life. My right leg is numb and I ache in the front by my groin area. I am wondering if this could be a pinched nerve?