Some Days I'm Just a Hack

My brother, who is a runner, says that some days when he runs, it goes well and he feels great. In other words, he feels like a runner. Other days, it's a struggle, and he feels like a hack. Today was my day to feel like a hack. After weeks of riding almost every day and feeling great (even if a bit cold), today I felt all wrong. I did the miles, but it was a grind. I didn't pass any walkers today, so hopefully nobody heard me singing, groaning, and giving myself little pep talks. May tomorrow be a better day!