about 5 years ago I had a weird wheezing attack when I was trying not to cry. You know, the lump in the throat kind of thing? I start wheezing, and can't catch my breath. It gets louder as the seconds go by. I've had about 4 of these incidents, the last being a few days ago. The attacks last a few minutes and I have no chest pain or anything. I don't have allergies or asthma, and I am very thankful the attacks are few and far between; but it's quite scary when it happens. What could this be?