Just got back from the gym where I walk/jogged -- if you can call that jogging...mostly it was just trying not to fall off the treadmill -- a little over the equivalent of a 5K (3.28 miles, to be exact).
I have no idea where it came from, but I had this thing inside me that clicked and just wanted to keep pushing. When I got in the car I had what I believe were tears of pure joy and pride rolling down my face. Or it could have been sweat, since I'm sweating from places I didn't even know I had right now. Sexy.