2 1/2 Weeks Ago I Hurt My Lower Leg Above

2 1/2 weeks ago I hurt my lower leg above my ankle it bruised my whole foot and my lower leg I could hardly walk and still have a very hard time putting weight on it I never went to the hospital and realize I probably should have now it has a huge knot that is very uncomfortable can't touch it hardly at all and the skin is peeling from that area the bruise is still really bad all the way around my leg what do you think