My stoopid right foot. There I was, sitting on the sofa, iBook on my lap, just posted my picture from the previous day, feeling pretty pleased with myself. I stood up to go upstairs, but my right leg had gone to sleep an was totally numb. I staggered, turned 90° left instead of 90° right, tried to jab my right leg out to prevent a fall, only for this stoopid right foot to fold under sending me crashing to the floor. The bare concrete kitchen floor, that is, not the nice soft carpeted lounge floor. At which point the numbness started to fade to be replaced by pain. I don't think there's anything broken but boy does it hurt!

Update: It's now 2 days later and I'm still hobbling around, though at quite a speed now!