Flushing is an involuntary, temporary reddening of the skin, usually of the face. Facial flushing may be accompanied by flushing of the neck or chest. In general, flushing results from dilation of the blood vessels beneath the skin surface.
Not all causes of breathlessness are due to problems with the lungs or airways. Reason #2: Breathlessness due to heart problems Angina, heart attack, heart failure, congenital heart defects, arrhythmia, all of these show symptoms of breathlessness. Incidentally, heart failure that is caused by the damage to the heart muscle is preceded by the other heart conditions such as heart attack, angina, etc.
Passing out or seizure This raises my concern about an abnormal heart rhythm. Anxiety disorders or panic attacks rarely cause you to pass out. You might pass out when having blood drawn or experiencing something unsettling. But if you have no warning signs before passing out, the risk of a heart problem increases.