This just started happening: Just prior to orgasm during sex, I get an unbelievable headache. It s like a brain freeze type headache that lasts about four or five minutes. I am a male, age 57, and not on any ED meds. Do you think this is temporary or something I should be concerned with? I average sex once a week. Also, if my head is down, on a pillow, for instance, it does not happen. If my head is up, this is when it happens (my partner is rather large and I ve got a belly as well, so sex is easier (when face-to-face) if I m kind of lifted up from the waist. Hope this makes sense.