A couple of times when I've gotten through biking 50 miles, I have noticed that I feel okay until I start talking. I'm okay when I get off the bike, don't feel short of breath, and am not wheezing. However, if I talk afterwards, I get to the point where I feel I can't breathe at all. It is really scarey. I use Advair twice a day. I have pulmonary hypertension. Is this a symptom of that, or is this asthma?