I went out this morning for an 11 miler. And in a nutshell I guess I blew up.
I was hurting by mile 3 but I figured I'd slow my pace and continued. Was sipping Gatorade and sucked down a gel at 40 minutes in. After a while i could feel the flem in my throat and stopped drinking the gatorade. From the Gatorade I guess.
At 7 miles I was close to my truck and stopped to get water. It was a quick stop (30 seconds) and when I tried to start running my legs did not want to go. I stopped for about 15 more seconds and started to run.
My last loop was ugly. My pace was at a crawl and I was really hurting. When I finally made it back to my truck I was in bad shape.
Dizzy, felt like throwing up. Could not drink. My stomach was feeling weird. All around messed up.
I was worried about driving do to the dizziness issue. Finally made it home. Had to sit in a cold bath and it took me hours to feel decent.
Even now i have spasms in my Calves, hams, quads and other muscles.
Dehydrated? Lack of carbs? Over trained?
Sounds like a buffet, not a run. 11miler? I would have an espresso and a glass of water 1/2 hour before. Nothing during the run. Your blood can do two thing, digest food OR deliver blood to muscles. Want both? Slow down. You consume too much and too early in the run, in a long run (which starts at 16 miles) I will use gels only AFTER about an hour. Let the body start to come together, before messing it up with sugars.
When you are hungry, eat before the run, which is WAY before the run. 2 rolls with butter and jam 3 hours before or a simple fuel bar (powerbar) an hour before. No calories in the last hour before the run.
If you have to drink during an 11miler, start after an hour ealiest. What you describe happens to me, if I ate too much, my stomach is bloated and sucks water out of the system. So eat lightly the day before running, avoid too much fiber/protein/fat.