Weird. Just plain weird. Yesterday I decided to take the longer way home, which pushes my one way trip from 5 miles to 10. Nothing big. Normaly a quite nice ride, but for some reason it felt like I was bonking out around the 8 mile mark, which made no sense. I get home and was really out of it the rest of the evening. This morning I get up and feel great, so I start to ride on in, following my normal 5 mile route. This time I started having problems around mile 4. What gives? I should not be having these sorts of problems.