For the past couple of years, I've had a VERY tender spot on my middle back, 2 or 3 inches right of my spine. Lately, though, the pain is almost in a straight line up my back (starting from my tender spot), parallel to my spine, and ends at the bottom of my shoulder blade. The pain is EXCRUCIATING. I can't even breathe without it hurting. I haven't been lifting anything heavy and I didn't tweak it. I have been sick for nearly 4 weeks, and I think the coughing is aggravating those muscles in my back. The pain has worsened over the days and I'm really trying to take it easy, but it doesn't help. Any thoughts on what it could be or how i can help it?