I am a female, and for about the past half of a year, I've been getting nosebleeds at an increasing regularity. I haven't been hit on the head before these nosebleeds, and I haven't jarred myself. I also don't feel them coming on at all. The last time that I had a nosebleed, which was a little less than a week ago, I also coughed up a little bit of blood, but I'm pretty sure that was only because it was in my sinuses.