I have a growth on the top of my head that I noticed a few months ago, ot sure how long it has been there. since noticing it, the growth has prob doubled in size. it is not external, it seems to be growing from the inside. I have no pain and it is not sensitive to touch. I get headaches once in a while and it seems that they focus w pressure in the area of the growth. currently it is prob the diameter between a nickle and a quarter.