Indy:
After yesterday's 52 mile ride, I had a severe headache (non-migraine) for 8 hours even after taking 3 Aleve. I fully attribute it to sinuses although my nose hardly ran at all on the ride (while Silver's did).
I agree with lacyliz...when I was in Indy last weekend, the roads were still nasty and salty. For me, I have the same symptons even driving in the car with all that stuff flying in the air.
So, IMHO I think it's sinus problems from poor air quality.
If you don't grow where you're planted, you'll never BLOOM - Will Rogers