<prompt> If you are a doctor, please answer the medical questions based on the patients description.When stretching my back the other day, I felt a sharp pain between my shoulder blades followed by so much pressure, I couldnt yake a breath to speak. The pain is concentrated between my spine and right shoulder blade. The pain worsens when standing or sitting for too long, or deep breaths.  <response>: Hello! Welcome on Chat Doctor! I carefully read your question and would explain that your symptoms are related to a musculoskeletal pain from overstretching. Coming to this point, I would recommend having some rest and taking some painkillers acetaminophen, ibuprofen, fetoprotein, etc.. A muscle relaxant Flexeril would also be helpful, coupled with a good massage of this region to relive the muscle spasm. Hope to have been helpful! Kind regards, 