Last week I went to the foot doctor to see about orthotics. The running stores always tell me that one foot pronates more than the other (sometimes they ask me if I've broken my ankle before!). I believe that this imbalance explains why my sore ankle changes sides with different shoes (different levels of support).

So it turns out the running store people are not full of it and all they said was true. Apparently I have excessive overpronation. This means that my foot rolls inward too much, the foot and ankle have problems stabilizing the body, and shock isn't absorbed as efficiently.

So I have ordered some orthotics and they should be in in a couple of weeks. I'm excited to try them out but a little worried that its going to hurt and take a while to adjust.