Okay a weird thing happened with my knees today. I was running, they were fine. Then I did my cooldown, still fine, maybe a teeny bit sore. While I was stretching I sat down on my exercise ball for a second and put my hands on my knees and I could feel something still moving around in there, like maybe fluid or something...even though I wasn't moving my knees at the time! To be honest it kinda freaked me out!
Has that ever happened to anyone else?