Element 4 - dead lift

I'll try and focus less on the workout, and more on what was the skill, and how I felt.
I'm trying to write this to give an idea to less than fit people on what I experienced going through crossfit.

Element 4 was Monday, the dead lift.  This was basically just about lifting a bar from floor to hanging position.  I somehow was expecting more than that since it was basically already covered as part of front squat step.  Not sure if it's just an oddity in order of lessons, or if maybe my coach and I weren't on the same page.  I lean toward oddity in order of lessons.
The WOD involved toe to bars, chest to bars cleans, jerks (yes separate), HSPUs.  My lower back started hurting not long after the workout.  Definitely mild, and not a 'sharp' pain at all.  I do have ankylosing spondolitus (sp?) which is basically inflammation & fusion of the vertebrate bones.  Mine is mild and if there is fusion, it's not really noticeable.  I wonder if I just happened to bend somewhere that I haven't bent in a while.  That could be a good thing, since making sure to keep the joints moving is the best way to put off progression of the fusion.

I did a mild workout on my own (at old gym) on Tuesday.  35 min run (about 2.7 miles), followed by just a few machines. It was definitely not planned, and was mostly just to kill time.  Now my shoulder feels a bit tweaked (but I don't noticed my back as much :).  I did forget to stretch, and proceeded to use the shoulder press machine, and the back rotation machine (can't remember what it's called but it works the lats while the upper body spins/corkscrews, it usually feels great on my back).
I wasn't at all concerned about my back, as I've had much worse pain there.  My shoulder does have me a bit concerned as the pain is sharper, but I'm still planning on my WOD tomorrow.  We'll see how it goes.