In such a situation, don't be embarrassed to see your doctor as this could be serious, as you said you get a "closed throat feeling." It might not be the mint, but something else that might be in the gum. Mint gum is consisted of different things than the toothpaste.
I think you need to consult to the doctors may it happens because of allergy, so don't take it carelessly.
I also was recently diagnosed with sports induced asthma and have also found that it was harder to breathe when I eat mint flavored things. Have yet to try fresh mint since this has started. I had been having trouble with my toothpaste so I had to get an anise flavored one. I was wondering if it was just the artificial mint flavor that bothered me, but I just had a mint cookie (made with peppermint extract) and I am finding it hard to breathe. I'm glad to hear I'm not the only one with this problem. I never had these symptoms until my asthma started up, only a few months ago, so I am also wondering if these are related.
a long long time ago all gum had latex in it! But not anymore .. I don't think any gum has it anymore so that isn't the cause I bet!
Can you eat Tic Tacs ,etc.
Wish I could help .. SassyLassie gave some good advice
I am thinking maybe it is causing your asthma to flare with the minty taste and you could even be experiencing a laryngospasm .. I'd ask your doc .. just a wild thought
C~
First, do not be embarrassed about seeing a doctor about ANY allergy or suspicion of such, this is YOUR health and you have a right to know. As to the symptoms, well, it may not be the mint, but, the additives that give the gum the mint flavor, most of the flavors in gum are artificial and you could be allergic to those.