Muscle stuck? Cramped up?

[UberSteroids]

So after about 6 months of time off I did my back workout, which was pretty damn intense. Barely took about 15-20 sec rest between sets.

What main issue is, my lower back muscles.

I did deadlifts
135x10
135x12
225x10
225x12
255x8:135x6(3-0-3) drop set

So this was enough to make it happen. This was supose to be a warm up before I get serious with it. I used to deadlift more than that!! I was fine for the rest of the day, next morning though, I COULD NOT get up from my bed. I was like wtf... I have been sore before, but this is not right. I thought, screw it, Ill give it time.
Well today is the 3rd day of MAJOR pain and not being able to put my socks on. The only way I feel minimum pain is when my posture is straight up, any movement back or forward (bending) is just extremely painful.
When standing straight and I want to bend my torso down, I can ONLY reach my knees !!!! I just cannot go anymore.

Feels like I have some steel rods stuck in my lower back. Like the muscle is cramped up or stuck/tight all the time, and I cannot relax it.

It is the 3rd day, it doesnt seem to be getting any better.

HELP

[Doc.Sust]

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