Whenever I run I get short of breath and slightly wheezy (when I push myself to hard). I took an asthma test that came back neg. But my Doctor says my sympotoms lead to asthma. I played sports for 9 years without problems. When running my throat gets clampy; I used to be able to run fine, but now I can't even get 1/8 mile without needing to stop. I use in inhaler but it doesnt always help... could it be something else?

I'm 20 years old and this has been going on since January. My first experience was on a vey warm winter day (65F), I jogged not probably 1/8mile when my throat suddenly tightened, mucus built up, my chest felt tight--so I stopped and just walked a few minutes before going back home. It took over an hour before I started feeling a little better--but it wasnt near 100% two hours later. That was the worst it ever was, now I dont run much because of it... but I can run in very short spirts, then walk/rest, and sprint (very little) again and be ok (uaually)... it didnt cause me to cough.

And I dont have allergies.

No one else in my family has this problem.

Sometimes when I drink caffeinated coffee it makes my throat tighten very slightly, but enough for me to notice (it never did that before, either).