Cardio Question

[Gorilla]

I have a client that asked the following, He is in pretty good shape, used to weight train mostly, little or no cardio, but has alot of muscle tone.

When I go running I end up with lots of phlegm/salivia in my throat and get a runny nose, Why does this happen? Is it a sign that I am unfit
?

[hassanc21]

Tell him to see his doc. Sounds like allergies.

[TurboD]

this happens on a treadmill too?