Injured
On one rep I was resting at the bottom, on my head, and in a moment of distraction, I feel over on my back. It wasn't an all out slap-my-back-to-the-ground fall, but it also wasn't a nice graceful roll either. At the time I felt nothing but embarrassment.
Later that day, I noticed distinct pain and tightness in the upper portion of my back, just below the neck, all centered around the spine, but fairly deep. Touching my chin to my chest and looking straight up in the air was difficult.
So, based on a quick assessment by Roger and Russ yesterday, it sounds like I hyper extended my neck when I fell and overstretched some muscles and/or ligaments in that area. I was not icing the injury, but after completing yesterday's WOD (the 12 days of Xmas, and BTW, I got crushed by Gabe) Russ handed me an ice pack and started me on a 15 minute on/off icing schedule.
It feels better today than yesterday, and I am still icing it as my schedule allows ... but I will be backing off my workouts for the next few days I think.

