question: I'm 47 years old and I got a sudden pain in my lower back just end of spine, sharp pain , I can't walk for 3 days, I was in emergency 2 days ago with the diagnose of pinch of nerves, they gave me some pain killer and anti inflammation pills, when I lay back down , I feel a bit better . I'm just wondering what could be the possibilities of my pain. thanks,my email  YYYY@YYYY