O Opened Eyes New member Sep 5, 2011 #1 Every now and then, I feel this kind of pressure build up behind my left shoulder blade, it's like it's in my chest cavity, then it goes away in a few seconds. I'm 15 if that makes a difference
Every now and then, I feel this kind of pressure build up behind my left shoulder blade, it's like it's in my chest cavity, then it goes away in a few seconds. I'm 15 if that makes a difference