I skate roller derby and a few days ago I rolled my ankle and pretty much fell and sat right down on it while skating. I heard a popping/crunching sound when it happened, and it hurt pretty bad. I was able to continue skating the rest of the night on it, as long as I didn't make any lateral movements.
There hasn't been any noticable swelling or bruising, and for about 80% of my range of motion I don't have any pain or instability. However, when I put weight towards the outside of my foot it's incredibly painful and feels very unstable. The outside of my ankle towards the front of my foot is incredibly tender and sore to the touch. I am able to walk and even run without discomfort, but I cannot step laterally.
Does this sound like it could be a chipped bone, or is it more likely to just be a bad sprain?