My story is similar to many of you, in that this all started while sitting at my desk at work, involved in a project, when suddenly I noticed that I couldn't take a deep, satisfying breath. It continued throughout the afternoon. At the time I was about 27, a marathon runner
, a non-smoker, a healthy eater, drinking no caffeine, and not experiencing anything particularly stressful in my life. Same story as you all: urgent care, unconcerned doctor, recommendation for Prozac, Prilosec, etc.