i had a lumbar puncture on last thursday that was severely painful the radiologist gave me 5 shots of numbing medication. i never became numb. he proceded and told me to stay still. i cried bc of the pain i was in and did not want to move for fear of further damage. i left the hospital on a walker because of the pain in my lower back and legs. could the pain be cause from the lumber puncture being done incorrectly.