Embarrasing Injury

So on my way to work yesterday, I came up the escalator at the Metro station to find that a train was just pulling in. The guy ahead of me was going slow and blocking my way, so as soon as I got off the escalator, I ran around him and headed for the second car, which drops me off right at the bottom of the stairs at Union Station (where I get off).

As I bounded along, I felt something catch and then pop free at the bottom of my pelvis, where my butt joins my leg. Man, it hurt!

And still hurts, although it's a little better this morning, after some Alleve overnight. From info I found online, it looks like I may have slightly torn the tendon(s) at the top of the various hamstring muscles, which attach at that point.

So here I am, literally butt hurt. Ow.

Gotta remember that I'm too old (or at least, not in good enough shape) to be running for trains. :-(