What have I done to my finger? Do I need it checking over?

Yesterday, somebody shut a door while my finger was in it and it got a bit squashed. It's my pinkie finger. I didn't do anything at the time (other than swear profusely!). However, when I woke up this morning it's all swollen. I can kind of wiggle it a bit but can't bend it because of the swelling and it hurts too! If I run a finger over the top of it I can feel a bump and it's feeling rather painful right now! My main concern is that the end of my finger has gone numb and tingly! Is that normal? I can't be bothered with the hassle of a 6hour hospital visit for the sake of a bruised finger! Any judgments? Thanks! :-) xx