On my run yesterday and today, near the end of the run I got some pain in my foot. It was on my left foot. The pain was right on my arch, a couple inches in. It felt like the tendon, or whatever it is there, was being stretched.
It got better today and didn't hurt afterwards. I'm just wondering what it is. I've been icing, heating, and massaging it. Any help? Need more description? Thanks.