She: "Hmmm, yes, definitely a problem in those two vertebrae"
Me: "So what does that mean?"
She: "Well, you probably sustained the injury a while ago, and your muscles compensated for as long as they could. Something pushed them over the edge, so to speak."
Me: "Oh?"
She: "Yes, you say this started on Monday? I'd imagine you did something unusual at the weekend to trigger it. Did you adopt any unusual postures? Any physical activity you haven't done before, or not for a while?"
Me: "Um"
She: "It would help with the therapy to know what triggered the secondary injury."
Me: "Er. Stretching to change a lightbulb?"
She: "Riiiiight. I'll write 'unsure' shall I, sir?"
And the woman expects me back on Wednesday? Tch.