I was so jazzed to run outside today. It is 80 degrees in Octobr in Minnesota - almost unheard of. Gorgeous fall leaves, nice breeze - a day you just want to be outdoors.
My run was awful. I was tired & my head got the better of me. I typically average 10 min miles, but today, it was more like 11.5-12.0 because of all the walking I did. I wasn't even hustling when I was walking, I was strolling becase my HR was so high! Then the negative thoughts crept in & it was darn near impossible to recover.
Now I feel like it was a total waste of time. I'd have been better off just eating less today & taking a nap.
I hate bad workouts. Bleh.
(end of rant)

I finally decided I do not like running. I wanted to get to 10 minutes, but I decided jogging was far more my style, and from there I decided spin was plenty good enough. 
Some days are just like that! Last week I had a glorious 8 mile run. Slightly faster than usual, felt fantastic, legs felt light, etc etc. Yesterday, I had a horrible 9 miler. Legs like lead. Fighting for every step. Ugh.