How about just really easy spin for 5 minutes on a trainer? That may calm your guit feeling and not be too painful. And if its only on one side then just do one foot pedaling and let the painful one just hang there.

As for mojo? I usually see mojo's heading for the nearest dark cave for most people. Takes bit of coaxing to get them to come out. Ya know. see its own shadow and gets scared.

don't beat yourself up. It happens to all of us at some point. There were times when I was in tears to go to my ski training.