Hate to hear that, back pain is no joke. I had, what the doctor told me was a strained muscle back when I played football. Had a collision during practice and it felt like you drove a couple of nails into my spine, right between the shoulder blades. Finished practice up, and gritted my teeth for the next two days. Could barely move and finally went to the doctor. He said it was just the muscle. Gave me some pain meds and went on my way. About a year later, it was still bothering me, although not as piercing of a pain, so I had it checked again. Turns out, I had strained a muscle, but also had a straw fracture. Moral of the story, choose your doc carefully