I started doing a run/walk program three weeks ago to get me up to speed for the running part of an olympic-length triathlon later this summer. I think my problem is not so much cardio, but stretching out all of the tendons and ligaments that are otherwise unused in my daily life (I'm up to 6-min running segments now!).

Anyway, the bottom of my heel started hurthing a couple days ago. It's nothing drastic, but I prefer to avoid walking on it when possible now. Has anybody else experienced pain in this area when they began running? My health coverage is pretty lousy, so I'd prefer not to go see a doctor if it's just something silly. I've read a couple things on the web, but they sound more serious than what could have happened in 3 weeks. I'd definitely appreciate any help that may be provided!