What causes shortness of breath?
Patient: Hi I beome short of breath only after I try to walk "erect" for more then a half block...if I stop for a short while I can then proceed for say another half block...I'm told it is either my heart or lungs...what's your diagnoses?  Age 72, Height 4ft 11 3/4"   Caroline Doctor: it's difficult to say it's related to heart or lungs without any detailed evaluation.Get your 2d Echo done,Chest X-ray,ECG and stress echo.Then only you will come to know what it's related with.