PHANTOM LEG SWAP?

You know that feeling you get in your legs after you've run or walked a ridiculous distance? A kind of weird dull ache as though your bones have been replaced with hollow glass replicas? I have that right now. Except I haven't run or walked anything approaching a ridiculous distance today. I'm serious. I complained about this feeling to Gabe all evening.

The only thing I can think of is maybe I'm feeling some sort of remote leg ... thing from two ladies I know who did a triathlon today. Except if that were true I'd probably be dragging myself around with just my arms, because I can't imagine ever working up the courage/stamina/etc necessary to complete a triathlon in my life. I know some tough people I think is what's going on.