Am I okay?

I think there must be something wrong with me, because this evening I had the urge to go for a run. Like, I actually wanted to go running! How weird, right? But you know, because I'm doing this whole get fit, get healthier thing, I made sure that I went. I got my work done, got into my Ivy Park gear and then went for it. I really, really went for it. Normally on my runs, I run and walk and run and walk and run and walk, using lamp posts as markers to stop and start at. However, today, I ran and walked and then ran. Yep, I only stopped once! I ran faster than normal too, really pushing myself. I put on some really fast, upbeat music, focused on the horizon and really sprinted- I have always been more of a short distance runner than a long distance one and I find sprinting so much easier. I also took a bottle of water along with me, something I don't normally do, and I'm wondering if keeping hydrated throughout the run actually helped m...