Ailment-related grumpiness

Down with a cold for the last couple days; it was clear that there was no point even thinking about exercise, and I canceled exercise meet-up plans for Thursday, Friday and Saturday.  I have also slightly pronged something at the back of my left knee (Brent suggests that it may be the popliteus), and though my cold is enough better that I was intending to go to yoga at 4 this afternoon, I thought as I was getting changed about how this bit of the knee feels when leg is fully or hyper-extended and realized that yoga is exactly not what is needed.  Very frustrating!  Hopefully it will be better tomorrow: what I'd really like to do is run in the morning and go to yoga in the evening.  I first noticed the knee thing on Wednesday morning before my workout with Mark; it's stiff when I get up from sitting or get up in the morning, not sore once I'm actually moving around.  May have been related to double spin class the previous night; it seems like the sort of thing that might result from a strong pull on the upstroke against a heavy gear.