I have what I believe to be a cyst on the top on the head toward the back. It is a under skin, too this to pop but the skin is thin enough where is causes discoloration. It is above the surface about a third of a centimeter or less, it is a little smaller than a dime, but large than the width of a number 2 pencil. Besides that I have these headaches behind my eye around the temple, and on top of the head all on the right side. I also have my wisdom teeth coming in on that side but just barely, my over all question is that I don t know which may be causing the pain nor what I should say when I actually go to the doctors.