mistere: I am wondering how many of you out there have my problem. When erect my penis reaches about 9.8 inches long and has a diameter of about 2 inches, and I get headaches when i have erections for long periods of time, or multiple times in a short period. I fear that it is because of the amount of blood needed to erect my penis, and that it draws from my brain essentially, resulting in a headache. Its a theory of mine, anyone know if it is true or not? or have a similiar problem?