Do I Have Weak Ankles?

Any time i do any type of exersizing that has to do with some sort of running and sometimes walking my ankles kill. At first its just when im running but then if i continue, it gets worse and i feel the pain even when im just walking. for example, yesterday i was playing soccer outside with a friend and about have way through my ankles started hurting just when i was running. then i was running and stepped over the ball and my ankle hurt so bad i could hardly walk. the pain is on the outside of my ankles right beside the big round bone towards the heel. do i have weak ankles? or could anyone have any ideas of what this is? thanks!!