When playing with a basketball one evening, a friend bounce-passed a ball fairly hard to me, but instead of catching it, the ball hit the underside of my littlest finger on my left hand and I could feel it bending too far backwards. It was painful when it happedned and for the rest of the day I couldn't really use it, lean on it or anything as it hurt.
The following morning most of the underside of my finger (and the area slightly below) had turned bluish/purple/grey nearly up to the tip and the back part has bruised a bit on the joint area. Also my finger has swelled up a bit.
I can still move my finger a little forwards and backwards but I can hardly bend it.
It's been nearly 2 days and it's pretty much the same, I don't know what's happened to my finger and was wondering if it is either nothing to worry about and it will heal properly by itself or could it be anything serious that it's worth getting it checked out?