Shooting Pain Head Neck My Boyfriend Gets A Shooting Pain In His Head And Neck When We Have Sex Now. Why?

My boyfriend gets a shooting pain in his head and neck when we have sex now. Why? - shooting pain head neck

This just started two weeks ago, suddenly. Everything went well, but the last two times we had sex, which receives such intense, throbbing pain in his head. He says he will start on the right side of the forehead and the curve all the way around the head to the right side of the neck. He said that the intense part takes a few minutes, but even after the disappearance of pain, which was left with a headache for several days. No idea what could be causing this? He expects that starts your insurance before you go see a doctor.