I have chronic breathlessness with no cough or wheezing. Sometimes I get chest pain. A month ago I had x-rays and the doctor said it was normal and suggested deep breathing. I also had echo and ECG 10 months ago which were normal too. At the same time I did a pulmonary function test which the doctor diagnosed as allergies and gave me some medications. However my ongoing breathlessness makes me think that it could be due to stressed? Any clues??