The left side of me is rebelling!  First it was the foot, today it's the knee.  My knee felt fine while doing my 1.5 mile run today, but while I was driving to work I started to feel that twinge in my knee that is usually the precursor to ITBS!  It's not fair!  I will be stretching tonight and Thursdays are my days off of running, so it'll get to rest a bit.