I'm attempting to run the Boston Marathon tomorrow, having done close to absolutely no training for it. The most significant thing I did was run 12 miles last saturday, because everyone was telling me I was crazy to try 26 miles without having done at least over 10 miles in one go. But I regret having done that 12 mile run because the next day my left calf started feeling a little painful, and it still hasn't healed properly. I'm hoping that it will loosen up after the first half an hour, otherwise I don't think I can do the whole thing!
And I also never got round to buying proper running shoes, so either way I'm gonna be in a load of pain I'm sure. I'm just hoping that the worst case scenario is only not being able to walk properly for about a week after.