I was at the gym, there was a mirror with a large crack in it, I went to lift a weight which coincidentally was holding the cracked glass up, I lifted it and the glass fell and a large chunk of my skin above my knuckle came off. It's still attached to the skin but its dead skin really. It started bleeding v. heavily. I went to the toilets, washed the wound out with water and put a lot of toilet roll around it and went home. I then applied a plaster and bandage around it. What else should I do, should I go to my GP? It isnt very sore but when I move my middle finger (i injured my middle knuckle) it hurts a tiny bit.