My foot hurts

I went out for a "run" today, and hey! I actually did do some jogging! Go figure. But my foot was killing me the whole time... the arch in my left foot, and, quite frankly, it pissed me off. So I jogged- but mostly walked- through the pain, and in a really bad mood. 2.15 miles later with my foot up and I feel fan-freaking-tastic. I guess there's something to be said for pushing through the pain? Who knows. All I know is that I REALLY hope that when I get out there on Sunday my foot doesn't freak out like it did today.