I was playing flag football the other day and i had someone hit my knee with their knee. Right after it happend I was in alot of pain and I could not stand. All of the pain was on the inside part of my right knee. Soon after the game it began swelling and hurting very badly, i could not even put my sheets on my knee. Over the next few days I iced it and eventually the bruising appeared. Now, over a week later it is still swollen and has some bruising and it still hurts. I can walk just fine, but i have noticed what feels like a muscle that feels like a elongated bump that i can move around on the inside of my knee. Should I get this looked at, does anyone have any idea what it is? Thanks