What Causes Pain Around Ankle Area?

Hi I hurt my foot it hurt around the ankle area when I walk it puts about and 8 in pain and when I press it it hurts and then when I stop pressing on it it still hurts a little when i press about a nine then when I stop its a 3 so I was wondering would you think I spranied it and also land about 2:30 I put my foot down and it was a 10 and I also