For several years I have had trouble breathing when doing something stressing...walking up stairs, not down, talking excitedly, etc. I have had an ekg in the past because of heart racing and pounding, because I couldnt get my Xanax filled I have been on for years. I have anxiety and panic attacks, major depression. When I would tell the doctor I got short of breath, he had me breath into something and just said you are fine, you dont have asthma. I cannot mow the yard, or I nearly pass out or cannot breath and am very red.