I don't know how I did it. I think possibly I slept awkwardly on Friday night - probably twisting my lower body around the two cats who curl up tightly against me on colder nights. They can overheat me and I've probably wrenched something in my sleep trying to get my legs around them without kicking them off (I'm too kind to them, I think; I hate disturbing them too much when they sleep).
It wasn't too bad on Saturday morning however, just a little bit twingey. So I was daft enough to do some gardening. We have clay soil here. Planting anything new usually requires a pickaxe, and I had four plants to get out of their pots and in the ground. As I swung the pickaxe cheerfully I revelled in how much fitter I was than a few months ago; gosh, it was no effort at all, I wasn't puffing, I could go on for ages...
Two hours later I was hitting the painkillers and lying in front of the heater with the heat blowing onto my back. Yesterday I was still stiff and despite the beautiful day didn't even feel up to a ride. More painkillers. More heater. A short walk with the dog in the afternooon. It's still sore this morning but not as bad as yesterday. Time to start moving about more but I'm not up to anything strenuous.
Bugger!!! Big fat bugger!!!