I've been getting out of breath for a few years but the doctors didn't think much of it cause they thought its to do with my asthma. I've been on many inhalers including flutiform which hasn't improved my breathlessness and just yesterday I did a spirometry test. For my SVC it was alright but for my FVC I couldn't do it. I could only force out air for 1/2 seconds, I repeated the FEV several times but I wouldn't get a result for it and I started getting chest pain. I'm not a smoker nor a drinker but I live in a house full of people who smoke so I'm exposed to it. What could this indicate?