Charlie: I've had a pain in the neck, literally. Not just the neck, but the shoulder, elbow, fingers ... you name it, it's screwed. I'm told it's probably a herniated C7 disc, and it's a constant source of joy. Numbness, tingling, a ceaseless sharpening ache ... it's not agonising, more accumulatively infuriating; like sitting in a cinema with someone continually kicking the back of your seat. And you can't get out of your chair.