question of the day

What the heck did I do to my knee Thursday night?

I rode the bike yesterday, didn't really notice it, but it was kinda yelping whenever I would sit down and it seems worse today. oh, I'm pedaling right now, but a bit slower and hurtier. probably not my best idea ever, but I need the exercise. maybe walking the dog would be better. it doesn't seem to mind walking, just the more extreme bending. feels like something isn't lined up right.