I can't be the only one

As I was running yesterday, I realized that I'm constantly giving myself positive reinforcement. I'm beginning to feel like a cheerleader but for myself.

This is kind of what it sounds like to be in my head as I'm running:
"You're doing great. Sure, you just started, but keep it up. See, that's not so bad. Keep going! You're amazing! You're like a machine! Way to go! Woo-Hoo! Look at that! You don't realize it just yet, but you secretly love this. Wow! See, you just reached .25 miles."

This self-talk continues until I'm finished with my run.

I just assumed that everyone did this as they ran. How else would they keep running past the point where they feel like their legs are going to fall off? When I was telling Adam what I think about/say to myself, he said that he doesn't do that. He said that every once in a while, he might say something like, "You've been running 10 minutes. Keep going" but those thoughts are not constant. That only made me feel like I've completely lost it. Am I the only one who talks to myself like that while I'm running? Is this a reason to be seriously concerned?

Please tell me that you do this too. I can't be the only one.