Thursday's run/circuit training

So Thursday morning was the track run with circuit drills. We didn't actually run at the track, we ran in the parking lot which has somewhat significant hills, doing circuit drills between each lap. To put it lightly, the hills absolutely killed my knee. After doing 3 laps, I spoke to Coach Al who told me to stop running and just finish up the circuit drills. My knee wasn't hurting from any of the circuit drills, just the running so I did that and headed home. Hopefully it won't continue and hinder my future runs ...