I say it can't hurt to go to the doctor. I you go, whether it's broken or not, then you know what's wrong and you get it taken care of asap, plus you get good pills and that's always fun...
Now, my old man would say "get up and walk it off you pansy." or "rub some dirt on it, it'll be fine." or even "be a man, live with it." Not bad sentiments either though cause I would have missed out on a lot growing up if I hadn't listened to his mantras and run to the doctor every time I broke something or split my head open... though I will say if there's more than a pint of blood on the ground or a limb is going in the wrong direction
the mantras get to a hospital now...