Is it normal my pinky finger aches sometimes?

Pretty sure I haven't hurt it in any way. The portion closest to the hand on the outside hurts, nowhere else oddly enough. Sometimes it only feels sensitive to touch and that's it. Like as if the skin was really thin. Does anyone else have weird pains like this?

Edit: Perhaps it is ulnar nerve entrapment? If I'm correct, I've broken this arm 2 times. Perhaps that did something to it.