Started in December when I had done a day's worth of Christmas shopping. Pain got so bad that it just hurt to walk / any pressure. Went to doctor and got some pain med - no x-rays / he didn't really do anything other than listen to what I had to say about it. Now it's roughly 3 months later and the pain is back and it doesn't seem to matter what shoes I wear (changing daily from flats to sandals to tennis shoes etc.) and the pain can be so intense when it happens that I just grimace and now and again it radiates up into my calf and occasionally my upper leg (back side and on the right side). My job is a secretary so sitting is something I do a lot of but I do take the stairs etc. to get a little exercise. Sciatic nerve is what I'm thinking but according to the diagram of foot, the pain is not in the right area.