What vertebrae is it near Shadow? I bet It may be a back spasm aka a muscle cramp. if so throw down for a massage, by a physical therapist if you can find one. See what they recommend for treatment. I hope you get it worked out, those things hurt and suck. Stretch it.. I know its not fair and it tells you that's the last thing you should be doing. But its a cramp. Electrolytes too if you could be low.
I just gorged myself on shrimp Fajitas.. i'm going to wait until I can sit up again and go back in.
Great day at the gym. Cool people working out. i'm not big at all on little small man syndrome hard asses that drop weights and turn purple when they lift. None of those people in there today. Theirs only two of them and one left I hope or works out at night. Its funny I was talking with this guy at work that lifts, but at a different gym, and was telling him about this asshat. He knew exactly who I was talking about. Guy ruins everyone's workout over there as well.
Just cool people today. if I stop in tomorrow im just going to soak.