That's the problem--ANYTHING could be the trigger and we wouldn't know it! Food, makeup, chemicals, pollen. I sure am going to be ticked off if mold at work has caused this illness to linger these extra years. What kind of breathing test did you have? I just blew into a machine at the allergist's office. He said I had reduced lung capacity but as with the other weird tests there's no reason given or "fix" for it. Hope you enjoyed your therapy! Doesn't hurt!