If hell is like that....

Yesterday for the first time in my life I cut a planned ride short. I was going to go out and get a solid 40 plus miler in out to Lemont to get some hills in. It turned out to be a sub par 20 miler. My legs(and the rest of me) felt lousy. The temps were in the 90s and the heat index was rediculous. Last year on a similar occasion I rode the same route and at the end sprint (against a car full of teenagers) I had to pull over because I became dizzy. It startled me last year. This time around I didn't have it in me. I started the ride with a headache I had since 10 in the morning and that certainly didn't help. - I went out for the ride at 4... SUCKS, but I came back feeling pretty down, which is a common occurence lately :(  Granted this years training as far as intensity and mental toughness go has been inconsistent compared to my last go round , but this has NEVER happened. They say setbacks are opportunities to reasses and overcome but I've had more than my fair share lately - SUCKS. Nevertheless I am reassesing my outlook, goals, actions, etc. Something's got to give, because where I'm at isn't all that great. Each small step right? I've got the Dr's appt that I blew off a few weeks ago coming up this Tuesday, and I STILL don't know if I should go. Its a dichotomy. Pros and Cons, trust and distrust, comfort in the familiar, and fear of the unknown. SUCKS. So I got in a 20 miler, and seen on the evening news that a whole bunch of people were being treated for heat related trauma downtown. A bit of reassurance that I'm not completely failing, and I did actually go out for a ride, but like I said, I've always managed to push thru and overcome in the past. AGE? Lack of razor sharp training focus thru the year?, poor diet habits, too many negative distractions? - A combination of all of them? Can't be the heat...
Ray