A man goes to see his local doctor complaining that each morning he wakes with a severe migraine.
"Do you see flashing lights?" asked the doctor.
"I do," replied the man, let's call him Jeff for simplicities sake.
"A searing pain down the back of the neck, nausea and tingling fingers?"
"Yes," said John (I changed my mind).
"And there isn't a painkiller that eases it?"
"You've got it!" John was amazed. "How did you know?"
"Well I suffered the exact same symptoms," said the doc, "so I researched it and discovered that when I get an attack, if I give my wife oral sex and at the moment she comes, I squeeze my eyes tight shut and grab her thighs to squeeze my head, the symptoms evaporate. I suggest you try it and come back next week to let me know how you get on."
John was dubious but agreed.
The following week he rolled into the surgery a changed man.
"Did it work?" asked the doctor.
"Absolutely!" John exclaimed. "The headaches have completely gone now. By the way...you've got a very nice house."