She probably just thought it was sore or something, and expected a reply like, "yeah - moved a damn refridgerator yesterday and I'm still sore."
I could probably manage to fall off a stationary bike. In fact, having never ridden clipless, I probsably would. But losing 140 pounds - that's something to really be proud of.
You also have the advantage of starting the holiday season with a great story to amuse friends with -- "My Bike Accident."
Paul