I am experiencing pain in the left side of my left foot. It hurts most when going down stairs. I first experienced it a month/so ago but it wasn't severe. Then, I noticed it getting a bit more frequent. Now, it hurts a bit on that side even when I am walking and giving me a stiff walk. I had previously twisted my left ankle and it has been hurting on and off since October 2009. I haven't fully rehabilitated this. I also have pain in the same left foot under my big toe which I was told was due to wearing high heels. I am very active - walk a lot - perhaps not wearing the most supportive shoes all the time - in NYC - so sometimes will walk a mile in ballet flats. This foot pain started out of nowhere, seemingly. I have a dr appointment in ten days but in the meantime, am concerned. I am thin/normal weight. What is going on? Thanks so much.