I think your body goes into so much shock that you just don't feel any pain. I Fell down some steps the wrong way trying to break my fall and my leg was twisted to the right and one of my bones was close to protruding out of my skin. I didn't feel any pain and just went "that's probably not good". Just called for help and sat there. Now have 10 metal pins in my right leg :/
*faints*
Ughhhhhh I'm sorry.That really sucks.