I used to nose-bleed a lot when I was small. At some point it became routine. The nose-bleeding would occur without any trigger and I would just feel some strange sensations inside my nose before the bleeding began. And when puberty hit and my menses started, they were very heavy.
With no logical explanation for my frequent nosebleeds, many started blaming witchcraft. In 2002, my younger brother developed the same problem. He once nose-bled until he became unconscious.