I am fine, just bruised and strained with the aches and pains of folly. So I have attempted mentally to figure out what happened during the fall. the point of impact appears to be just above and to my left of where the spine meets the hips. This was either a small slice of time before my left forearm took the rest of the initial impact, quickly followed by my right which started with my pinky and ring finger and hand. I surmise I had tucked my head, chin to my sternum as the neck muscles on either side of the adams apple are very sore as well. I tried to keep my head from the impact but to little avail as the back of my skull did make a loud bounce and sling shotted my glasses across the floor.
It must have made a sickening sound and quite a production as they turned on the lights and the manager lady was heading across the floor towards. My first attempt to stand was unsuccessful. A second attempt found sure inline bladed footing. My glasses were handed to me and I skated off to the side to assess. Total elapsed time was less then 20 seconds.
Back of head: No bruising, forgetfulness, ringing, nausea, tiredness or slurring of speech. I had no problems recalling short term memory and I slept rather well.
Neck muscles: Trapezius was tight and slightly sore, a wifey massage helped that. The sternocleidomastoid muscles are sore to the touch but have a full range of motion.
Lower back: Bruised with some stiffness. Careful stretching and warm up counters this throughout the workday.
left forarm: Mild discolor from bruising. No ache or pain (I think I landed pretty good there).
right hand: Ring and Pinky finger are stiff. Careful stretch and warm up counter as well.
So all in all not a bad fall for an older guy.