And yes, I am sore today

Yesterday I completed my first workout that included running. Ten minutes of it. Total. And it was freakin' hard. I've never felt fatter than when my legs were tired of running and my feet came down harder on the ground than I intended them to, and it seemed as if the entire earth was quaking with every Thud. Thud. Thud. But of course that's only because I was moving at a prolonged intensity that I have not attempted since ... oh God, I can't remember.