Did I sleep wrong?

I woke up this morning at 3am to a sharp sort of pain in the middle of my chest. Not sure how to describe the pain. I noticed it was because I was laying on my right side and my right boob was being pressed together to the other one. Now when I go to move my right boob to near the middle of my chest or I lean on something on my right side I get a sharp kind of pain in the middle of my sternum/chest. Could it be from a pinched nerve or sleeping weird?

(I also have scoliosis as well)