I haven't been able to breathe right since me or my parents could remember, I have always had to take an extra gasp every now and again, it's not asthma, my airways are fine and so are my lungs and heart as far as basic tests can see. I wake up at night breathless and it's been getting worse over the past 3 years. I can barely function now. I can't walk long distances, I cant bike, lifestyle changes make no difference. tests I've had are CT, Echocardio, breathalyzer, z-ray of chest, blood test..