Sarah, from London, developed PSAS after being prescribed anti-depressants at 19.According to Wikipedia, Permanent Sexual Arousal Syndrome (aka Persistent Genital Arousal Disorder) is rare among women. From Wikipedia:
She believes her condition was brought on by the pills.
She said: "Within a few weeks I just began to get more and more aroused more and more of the time and I just kept having endless orgasms.
"It started off in bed where sex sessions would last for hours and my boyfriend would be stunned at how many times I would orgasm.
"Then it would happen after sex. I'd be thinking about what we'd done in bed and I'd start feeling a bit flushed, then I'd become aroused and climax.
"In six months I was having 150 orgasms a day—and it has been as many as 200."
Persistent Genital Arousal Disorder (formerly known as Persistent Sexual Arousal Syndrome) results in a spontaneous and persistent genital arousal, with or without orgasm or genital engorgement, unrelated to any feelings of sexual desire. It was first documented by Dr. Sandra Leiblum in 2001, only recently characterized as a distinct syndrome in medical literature. In particular, it is not related to hypersexuality, sometimes known as nymphomania or satyriasis. In addition to being very rare, the condition is also frequently unreported by sufferers who may consider it shameful or embarrassing.
Physical arousal caused by this syndrome can be very intense and persist for extended periods, days or weeks at a time. Orgasm can sometimes provide temporary relief, but within hours the symptoms return. The symptoms can be debilitating, preventing concentration on mundane tasks. Some situations, such as riding in an automobile or train, vibrations from mobile phones, and even going to the toilet can aggravate the syndrome unbearably.