<p>A nose bleed is a sign of high blood pressure, and stress. My mom gets them all the time, and she constantly has both, but I've only had like three in my whole life.</p>
<p>ChamilitaryMayne - your sneezing is what causes the nosebleeds. The three times I've had nosebleeds have been because my nose was really dry and I was sneezing really hard, so it makes it bleed.</p>