I am a 52 yr. Old male who had severe pain down the lower back and rt. leg. I was admitted to the hospital so they could figure out what was wrong. After an MRI was done they found a torn disc. They performed an epidural which seemed to elevate 'the back pain but after 6 days I still have pin and needles up and down the inside my rt leg and my knee feels numb not to mention my rt leg is very weak. Is this normal?