Hi, I feel breathless with no exertion, couhing and lightheaded. I have had a full medical, blood tests and ecg adn respiratory function tests all came back normal. I have seen an ENT specialist and he could not see anything. I have had a chest xray and this is normal. What could this be?
Respected user, thanks for using Chat Doctor.come have evaluated your query thoroughly.* This seems psychosomatic manifestation of underlying stress or anxiety disorder most probably.* Guidelines for better recovery - Avoid stress, anxiety - Have regular, sound sleep of 8 hrs - Avoid smoking, alcohol - Regular walking in fresh air, deep breathing exercises, YOGA, meditations are the only curative things for you.  - Plenty of liquids, balanced nutritious diet. Hope this clears your query. Welcome for further questions. Regards.