Hi. I Think I Pulled A Muscle Between My Shoulder

Hi. I think I pulled a muscle between my shoulder blades about a week ago. After a week it started getting worse so I went to the chiropractor. I get an adjustment once a month. He felt like things were out of alignment and did an adjustment. It felt better, but by the middle of the night the pain became excruciating. It hurts worse when I'm upright. I can get some relief laying flat on a hard floor. The more I move the better it feels. Sleeping is impossible. Should I go back in to him to see what he can do or is it time to see a doctor?