Argh, the pain!

Something is up with my right calf. I woke up last night cuz I moved my right foot and suddenly there was a searing awful pain in my calf. I was all, wtf???

It's weird, cuz derby pain is usually on my left leg, what with you really only pick up your right leg and keep most of your weight on your left. And why the calf? This has never happened to me before. I am mystified.