Hi there. Yes, that is outside of normal and you do need to see a doctor. I wouldn't panic or anything but you need to get it diagnosed and work on why you are bleeding heavily for so long. It could be something like fibroids which can cause that. You'll also want to make sure you aren't getting anemic with such blood loss. So, please do see a doctor soon, okay? Good luck and come back and tell us what the doctor says, okay?