I ran a relatively easy 5k on Saturday morning, then ran 6.5 miles on trails Saturday evening...all in VFF's. Got up Sunday morning with my right knee all swollen up. The swelling is above the knee cap, and I have no pain at all. It does feel a little tight, but I think that's from the fluid. Ice doesn't take the swelling down, but heat does. Its totatally strange and I've never had anything like it before. Haven't run since Saturday as I'm waiting to see if the swelling goes away. On the verge of going to the...gasp...Doctor to see whats up. Not running is driving me crazy