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.
It is sometimes to difficult to tell whether shortness of breath is due to CHF, diseases of the lung, other diseases of the heart including blockage of the arteries, or other conditions. People with CHF also may experience weakness with exertion due to the inability to increase the output of the heart.