It might have been the way I had my pillows stacked. I usually sleep on my stomach, since I still have a flare up of sleep apnea from time to time, which only happens when I’m on my back. But, for some reason, half way through the night I took off the restraining belt that prevents me from rolling onto my back. Either way, man! This sharp pain really really hurts.

My calf injury’s looking good right now, compared to this back pain.