For the last two weeks, I've been trying an experiment. See, my feet hurt. Well, to be completely accurate, my right foot hurts. My amateur diagnosis is plantar fasciitis or a similar injury to that tendon. Since this is a common ailment for runners, my experiment was to stop running for a while and just use the elliptical machines which have never given me problems before.
The results of my experiment: my foot still hurts. Being a good scientist, stopping running was the only thing I changed. What I'm still doing is standing at my desk at work. After one of several articles I've seen recently on how bad long bouts of sitting are for you, I started standing at my desk at work. After the two week experiment my foot still hurts, but on days when I sit more, my foot feels better.
Why just one foot? Long story short: it's weak. I'm already doing stretches and exercises to get my right hip and leg stronger, so I added in some foot exercises I found online. It's too soon to tell if the exercises are helping, but I'm hopeful.
Knowing that it's not just the running that hurts my foot makes me happy. I'm somewhat disappointed that I'm not cured, of course, but having found a root cause, I can work on getting stronger.