Attack of the back!

I'm writing this laying on the floor because when I was cleaning this morning I bent over and when I tried to straighten up, my low back locked and starting hurting really bad. It is the left side now and slightly above where it was in February. I'm icing and laying on my back with my legs up. CRAP!! I was going to ride this evening after some major house cleaning. Hopefully something will happen and my back will quit hurting. Shannon
PS- I was able to do some cleaning and rode 3 miles. This time my back hurts WAY more after sitting, but if I can tough it out for 20 minutes of pain, it gets better and I am able to walk.