okaay so my sister has been having random nose bleeds , she thinks its from just the left nostril! anyway, she woke up last night at three in the morning because her nose was bleeding , is this normal and what is it caused by? last week she was sitting there doing her hair and randomly her nose just started bleeding.. so whats going on? is it a bad thing or what? need answers, pleaaaase? could it be bad signs for some thing aswell? thankyou.