I'm with you. Took Fasty (what I call the tri bike- as opposed to slowy the touring bike and dirty the mtn bike) out for a spin on Friday and it felt SOOOOO strange. I felt like Chris Farley in Tommy Boy "Fat guy in a little coat." I felt like "fat girl on a teeny bike." I was all bundled up so bending into aero with bulky layers was hard, and it felt so light and nimble.
Funny how "unused" to it I've gotten. And my neck has been sore for 2 days from being in aero.

I did not, however, feel the need to run like you did. Let's get out there on our tri bikes more often, RM. Gotta get those tri muscles in working order again.