1. Answers to FAQs and Articles about Problems with Sex and Desire in Women from Woman's Diagnostic ...
Angiographically demonstrated arterial spasm in a case of benign sexual headache and benign exertional headache. We wish to report a case of benign sexual headache (Type 2) and benign exertional headache, occurring sequentially in the same patient.
http://www.wdxcyber.com/msex.htm

2. Central Baptist Hospital : In Depth Reports Articles -- Central Baptist Hospital : Central Baptis...
Tension-type headaches, also called muscle contraction headaches or simply tension headaches, are the most common of all headaches. Tension headache is the most common primary headache and accounts for 90% of all headaches.
http://www.centralbap.com/healthcontent/indepthreports/showarticle.cfm?prodid=1...

3. Sexual Headaches: From Ecstasy to Agony
Doctors haven't determined the exact cause of benign sexual headaches, though they are classified with other headaches brought on by exertion, such as the exercise-induced headaches sometimes experienced by joggers and weightlifters.
http://healthgate.partners.org/browsing/Content.asp?fileName=14520.xml&title=Se...