Hi, for over a year I've been having really short headaches and they only last for a few seconds and then it goes to minutes. The longest was about 3 minutes and they are really sharp.It varies everyday like where they are on my head and how sharp it is and what time of day it is. My headaches are about a 7 on a 1 to 10 scale and 10 being the sharpest but it varies everyday. I'm only 15 years old and I've been to my family doctor and I got some blood work done, a Cat scan and the doctors said that nothing is wrong with me. The headaches really kill.They do not know what I have so they said that I have to live with it, but I can't because they hurt so bad. I don't take any medicine because they only last a few second/ minutes, so whats the use if they don't take the pain out right away.