I am a 16-year-old male. My weight is 76 kilograms, and my height is 5 feet 11 inches. I go to the gym and lift weights to compete in powerlifting. When I was deadlifting, I was pushed off the floor. I twisted my head to the left, and I assumed that there was a lot of pressure on the right side of my body. I felt minor pain in my upper middle back underneath my shoulder blade. I do not think this is a muscle, as I only get pain in certain positions that seem to change. So the minor pain got worse, and I could barely pick up weight. I took five days off for lifting, and it seemed to have dulled away, so I headed back but stayed off lifted, such as deadlifting, rows, and anything that would need me to pick weights off the floor. Everything went fine for five days or so, and the pain was just an annoyance that remained. I am currently resting, as the gyms are closed at the time, and the pain has got much worse all of a sudden. I would just like some advice on what this may be and how I can treat it.