hi found you a link that could be it but it can go in a couple of different ways as you will see start just down on the right hand side. <link> just copy into google to the www. to open and read. hope this helps where doctors dare no tread? good luck
my husband has extreme heat sensation between his legs in groin area when lying down. . none of our doctors seem to be very interested when we tell them. however it is so severe he has to use a cold pack in order to sleep.