I am doing high school cross country for the first time and ever since the day we did hills a week ago, my ankle has not stopped hurting. It hurts during and after a run and it also hurts to walk. It is not really swollen, but the veins there are sticking out a lot more than usual. I have been applying ice packs for two days but it has not helped. It hurts especially at night and in the morning. Whats wrong with it?