hey, I am bleeding black blood for 3 days now, I went to the doc 2 days ago but they said it was just old blood. but now I am feeling very tired, having really bad headaches , and feeling like i need to throw up but I can t. the blood has a oder to it. I m worryed this isn t just old blood because i just had my period a week ago. please help me understand whats going on and what can i do?