Yes, but I'd just been ambulanced from A&E to a special infectious diseases unit with suspected meningitis (was a viral brain swelling thing apparently) and was a bit out of it by then and couldn't concentrate on much due to the headache and they were keeping lights off as much as possible for me. I remember the doctor having this little light behind my back as he was doing it to keep the room darkish. I had a nurse front side of me but I can't remember it being particularly painful, but, as I said, I was a bit out of it. I did have some awful back trouble for a few weeks though and it was very painful to try to bend. It was needed though.