I was out riding this evening and was practicing skidding down a steep hill from my house. I usually brake the whole way down this on my way to work, but wanted to try skidding since I'm not too great at it. After maybe 20 minutes of doing this back and forth for practice I'm hearing a clicking noise when I ride on flat road.
Normal? Everything feels ok, just a click that wasn't there before.

EDIT: The bike is clicking, not my knees