General guidelines say:
-within 2 weeks a minor sprain will start to feel better.
-ankle breaks = constant dull ache
-ankle sprains = sharp pain with certain movement
Have you been resting it? Is there bruising? When did the bruising come out?
I think it would be worth an x-ray (I have become a bit of an expert in ankle sprains/break over the past couple of years) seen as it is still bothering you after 2 weeks. Even if it’s not broken it will give you a solid ‘expert telling’ to take it easy and rest.