Thanks for the concerns ladies. I will be sure to pay attention to if it happens again, and if I have any other odd symptoms. As it is, I am in perfect health so far this season, not even the usual seasonal allergies for me!

(And Beth, I'd love to do more Chester County rides, it's gorgeous out there in Horse Country... by the way checked the data on the ride off of my friend's Garmin... just shy of 1 mile of vertical climbing! )