Hi my name is James, I am twenty five years old, and work a full time job as a Produce Assistant Manager at Randall s/Safeway. I m constantly moving and working, I do try to use proper back procedures, lifting with my legs, however late last night I started feeling a bit of strain in my back, when I woke up this morning I was completely unable to move, my back hurt so bad, I could not go to work, the only thing I have been able to do after use of advil , and aspercreame, is move enough to use the bathroom, and sit in front of my computer. Any ideas of what I may have done?