I fell front first onto a vinyl floor and hurt my knees and arm. A few days later I worked a 15 hour shift where I was on my feet the whole time and when I left I had to lift my left leg to get into the car. I was in a lot of pain in my left lower back and from there down my leg to my feet. I could not lay on my left side and the pain in my left lower back was constant. My Dr sent me for xray that showed nothing and then he sent me for a ultrasound steroid into the area between hip and femur. I still experienced the symptoms and the right lower back was still paining. That was about 6 weeks ago and since then it has improved. 4 days ago I reached down to do something and hurt my right side upper back and had pain so severe it felt like I had a broken rib. When I breathed the pain was severe felt like pain of pleurisy I had many years ago. Every time I moved, my back spasmed and I was in severe pain. I could not lay down. The dr at emergency sent me for xray and nothing to explain was the result. I still have the pain and whne I cough it grabs me. Right side below shoulder blade.