I'm not the best at ID-ing these types of problems. I have this pain in the upper -left portion of my back whenever i turn my head to the left. I can't look over my shoulder without there being a good amount of pain. Anyone know what this could be or what this could be from? Pulled a muscle? I thought maybe I just slept on it wrong, but it's been like this for about 4 or 5 days now. Thanks bros.