Was just at the doc today.
Seems I pinched a nerve near my spine in my lower back, which is causes all the muscles near it to go into a permanent cramp.
This morning when I tried to get out of bed was the worst pain I had ever experienced in my life. I couldn't sit up or stand up, much less roll onto my side.
Right now I'm on a mixed pain med, muscle relaxant and strong anit-inflamitory. Sitting is the best thing I can do he says, as long as I lock my back and sip 100% upright.
When I stand up I'm to luck my back in, roll my shoulder back and push off with my heels. Sounds like a deadlift to me haha, I have 0% pain when I stand like that.
So I can't do anything this week, not even allowed to walk since it aggrivates it all, if I feel better after the weekend I'll be allowed to go for short walk, by the end of that week I may only start light swimming if I have full range of motion again. 10-14 days after that I can start lifting again.
This all assumes that the pain, cramps and lack of motion clear up well enough by the end of the weekend.
Sucks man

Was this a prior injury at all?