Patello-Femoral Syndrome

I've got a classic case of this, a.k.a. this.  I was interested to read that it's more common in adolescents, since I thought the reason I have it was because I'm getting older.  Also interesting to read that "patients often note going up or down stairs worsens the problem" and "Many times there is a recent history of increased physical activity (i.e. running)."  Yep.  Both of those are spot on.  My doctor referred me to a physical therapist (where's my brother, Scott, when I need him?!) and told me not to run more than 3 miles at a time, with one or two days rest inbetween, which is a bummer since I finally got back to 5 miles today!  Hopefully I will be able to strengthen my VMO muscle and get back on track.