Running can be a pain in the ankle!

On last night's schedule was a short 2.5 mile run. As I was walking down the stairs to leave work, I noticed a pain in my ankle. Once I started to run, my shin, calf and ankle were all really hurting me. Usually my legs hurt for the first 20 minutes or so and then the pain eases up but because I ran a few extra miles last week to finish that virtual half marathon, I imagine I did some damage. I decided after a quarter mile not to risk it and try to give my legs a break until Thursday. I feel badly, like I'm being a wimp for not gutting it out but I'm also scared to try to push through it and end up with an injury that will prevent me from continuing to train. :(