Sick on the trail

Have you ever been sick on the trail?

Was this before you started the hike or during it?

What type of sickness was it? Did you have to end the hike or overcome it on trail?

I get altitude sickness, the older I get the worse it gets. The worst I've ever had was on the Sawtooth Ridge between Mt. Beirstadt and Mt. Evans, I was sick before I started the traverse but I pushed it anyway. I couldn't make the Mt. Evans summit and had to hike back through the willows as soon as I was off the ridge.