I have random bruising on both my ankles. What's wrong?

It hurts my ankles when I walk and they are bruising now I think that's a little odd. I just started running an hour a day every morning. I ran yesterday and today and plan to keep going. Could that be the reason they are bruised? Also, I've showed signs of being anemic. I've never been tested for it, but could I be bruising because I'm anemic?