sorry guys, i realized my post was long and tried to shorten it - I took out some important info. I DID get lots of water that day. I had two full bottles on the ride, lots before we went and 3 glasses at the bar. I only had one beer. BUT it was hot that day and the first hot day of the year usually takes me by surprise. So it's possible that I still didn't get enough water.

I will take the suggestions to the road. Especially the chocolate milk. Thanks for the input!