Twitching limbs

I was so busy marking assignments yesterday that I didn't have a chance to go for my customary walk. I think I'm getting addicted; as a result of lack of exercise, I couldn't sleep, my limbs were very twitchy and I've been really restless in general. So, despite the heavy rain, this morning I must go for a brisk walk. Time to get those walking poles out, attach my iPod (I can thoroughly recommend listening to audiobooks when you're out walking) and stride out!