The common causes of
cough with breathlessness for few seconds are viral infections, whooping
cough, bronchitis, bronchial asthma or any other problem related to the lung. Are you also having any other symptoms like increased sweating, chest pain? In that case it may be an indication of some problem related to the heart. See a physician. A physical examination, investigations like complete blood count and X-ray chest may provide more information. Do keep me posted on your health.