I have suffered from this horrible condition for almost 2 years and take issue with you describing this poor woman as a nympho. PSAS/PGAD is a PHYSICAL condition, completely unrelated to sex or sexual thoughts. It is thought to originate in the pudendal nerve and I can tell you from painful experience that it is something I would never wish on my worst enemy.
It is a relatively rare disorder - probably not a rare as we think, as there must be many more women who suffer with this and are too embarrassed to discuss it - and WHY WOULDN'T THEY BE WHEN PUBLICATIONS LIKE YOURS PERPETUATE THE MYTH THAT WE ARE A BUNCH OF WHORES?
If you are familiar with Restless Leg Syndrome, MS, or any other central-nervous-system disorder, where your body takes over for no reason at all, then imagine what it would be like to feel either constant throbbing, painful nerve endings, and full pressure - or all of these things - while feeling as if you are on the constant verge of orgasm. Believe me it is NO FUN, it has made sex TORTURE, and thinking you can masturbate to relieve the pressure only makes it worse.
So PLEASE stop making this about SEX. And stop making jokes about it. I have reached the point where I wish I would never have another orgasmic feeling in my life, and I never thought in a million years I'd ever say that. Oh and by the way there's no cure yet, so I have to do my best to get through every day knowing it may be a permanent condition. It is truly a living nightmare.