I could have written that initial letter for the symptoms. On 18 Sept 09, I was holding my newborn son on the deck when I lost my balance. My concern was for him so I held him tight and was unable to brace myself when I fell. I slammed into a heavy wooden table making contact with my back, right below my left shoulder blade. That night in bed, I lay on my stomach and felt (and heard) this "pop" right behind my left breast and since then I have been in terrific pain. I wonder if it's a broken or fractured rib, just bruised or a torn muscle. It seems like I have damaged my lung as well because I begun coughing up mucus. It hurts to breathe, cough, laugh, roll-over, pick up anything, etc...I'm too stubborn to see a doctor and I've heard that doctors can't do anything about a broken rib anyway except give you something for the pain. I hope it heals soon.