I am a 13 year old girl, and on the top middle of my foot I have a bruise, and it's like two little raised spots in it that are discolored, and it's been there for about 3 months. It has a mild ache when you press on it, and it kind of reminds me of a rash under the skin in the two areas. When I first noticed it, it hurt often, but now it doesn't really hurt until I press on it. Do you have any idea what this might be? Thank you.