it's actually a condition that can happen to either men or women. usu a headache will subside after orgasm (so don't use having a headache as an excuse anymore) but occasionally some people actually get migraines or headaches as they approach climax and it's still not really well understood. one possible reason is that the neck/shoulder muscles tense up so that it causes a tension headache.
at 6:27 PM on Jul. 7, 2011