<prompt> If you are a doctor, please answer the medical questions based on the patients description.Since friday I have been experiencing Upper left back pain. when I turn my head both direction it seems to get worse or when I try to lay down. The pain seems most noticiable at night and it breath taking at times. what is wrong with me? I havent done anything to it.  <response>: Hello, Thanks for your query. The fact that your pain is occurring with movements indicates a muscle strain. Any strained muscle when stretched gives severe pain. I advise you to follow the below-mentioned guidelines - Give adequate rest to the involved muscle group and avoid any movement that causes pain Ice packing once in every 2 hours over the affected area Moist heat application to relax the muscles Local application of muscle relaxant gel Analgesic medications as needed do hope that you have found something helpful, and I will be glad to answer any further query. Take care 