It's on the outside of my right knee but aligned with center of the knee cap. Pain was most present when I cycled but not so much outside that. I don't feel it when walking but sometimes I did when bending my knees out of a chair. I haven't cycled a week, and I don't feel it now. What was it, and what should I do? I should mention I first felt it doing an indoor cycling class. I don't know what triggered it. I'm thinking the one legged pedal stroke with too much torque, but I'm not sure.