Diagnosis
Waldinger says this condition is prone to being erroneously ascribed to psychological factors or hypochondria. In a 2010 British Medical Journal case study, Dexter links a form of coital headache with POIS, and references a science forum in which thousands of sufferers (a number which is rapidly growing) have detailed their condition. Dexter's patient was found to have low progesterone.
Read more about this topic: Postorgasmic Illness Syndrome