Absolutely!! and Absolutely! I have had the same problem. As a singer, it can be frustrating. Even if your not a vocalist, just about any vocalization, except whispering, will be affected. Anxiety Disorder causes tightness within your chest and lungs, etc., which in turn, leaves you with little consistent control over the diaphragm and connective tissues of your lungs and your heart. I'm no doctor, or whatever, so please forgive if I'm not as precise as you may be looking for.