I would guess that you hit the shoulder blade, at least that would be my explanation for the broken blade on your BH. If there was no trace of heart or lung matter on your arrow i'd give her till morning before you put pressure on her. hopefully she'll have bled out by then. I've never been in that kind of scenario though so my 2 cents really doesn't mean anything, hope it helps you out anyway. good luck finding her, let me know how it turns out.