Today I was running my hand down my shin, and I noticed there is a dent in my shin bone! It is about 2-3 inches down from my knee, and about 1/2 inch in diameter. (sorry for the non-Americans, I don't know how to convert to cm). I didn't hit it on anything, and I am pretty sure it just appeared within a day or two ago. I had shin splints and I am still recovering from them, so maybe that has something to do with it? I told my parents, and they said maybe it's swollen around it, making it seem like there is a dent, but there is not really any swelling. I doesn't really hurt when I push on it, but randomly, I will feel a really sharp pain there for about 10 seconds. I don't know what it is! Help!