J junebug2189 New member Dec 16, 2010 #1 I'm 21 years old and this is a recent occurrence. It happens when I try to sit up straight, especially when I'm playing piano. What is causing this all of a sudden? Do any medications cause this?
I'm 21 years old and this is a recent occurrence. It happens when I try to sit up straight, especially when I'm playing piano. What is causing this all of a sudden? Do any medications cause this?