Plantar Fasciitis is a painful inflammatory condition of the foot caused by excessive wear to the plantar fascia. The pain usually is felt on the underside of the heel, and is often most intense with the first steps of the day. It is commonly associated with long periods of weight bearing or sudden changes in weight bearing or activity. - wikipedia

This is something so foreign. Thank goodness for the internet, now I am informed. Must. Really. Go. On. A. Diet. NOW!