My left ankle started hurting about a week ago. No visible symptoms. A little faded bruising is all. Started hurting first on the outer ankle and outer side of foot closer to the ankle. Spread to the inner side of my ankle parallel to the pain on the outer side. Then the pain spread to the entire outer side of my foot and pinky toe. Now the pain has officially spread to my arch too. The pain isn't constant but it is become more and more constant each day. What is wrong with it? Is it tendonitit, a hairline fracture, a sprain, or something else? PLEASE answer.Oh and Im getting an ankle brace in 3 days cause I run cross country and it really hurts during practices.