This probably sounds like a really strange question, but if anyone had some insight, I thought you folks might
Yesterday I started off on century -- it's been my goal to complete my first ever this fall -- and I began early, got plenty to eat and drink, was feeling somewhat saddle-sore, and a little tired from having some shifting problems on a hilly ride, but otherwise ok ... when the heat began to pick up and I found myself not _wanting_ to ride anymore. I started to feel very teary, sad, sleepy and just wanted to go home and go to bed ... I drank about 1.75 liters of water, and temps ranged from 70-100 (it was 70 at the beginning of the ride and 100 for the last hour or so -- this is in breezy Santa Cruz, California, USA). I felt like I was doing ok, physically, but mentally I suddenly became a basket case. I went from feeling really enthused to quitting by mile 50.
Anyway, at the risk of sounding like a total dork, I was wondering if anyone's ever had such an experience?
Another note about me -- I seem to be fairly glucose intolerant -- if I eat much sugar or carbs and I become really sleepy/moody, so I'm usually monitoring what I eat fairly carefully, and trying to include proteins with whatever carbs I have.
Thanks in advance for any thoughts or ideas...