Sharp Random Pains

Hi there, so I'm 22 years old and for the past year I have been having random sharp pains in my head. I wish I could pin point where the pain is but I wasn't kidding when I said random. Sometimes it would be on top of my head, on the left, right, back, etc... It usually lasts anywhere from 10-40 seconds and feels like needle *****. Majority of the time they aren't extremely painful, more of an annoyance, however there have been several painful episodes. I'll be minding my own business then I'll suddenly get a jolt of pain for 20 seconds then it leaves. What's weird is that I can go weeks without feeling anything or get 3 to 4 a day. Since they are so random I want to say its just stress related. I hate going to the doctor for something minor so if anyone can offer insight I'll be extremely thankful.

Thanks!