Kim Ramsey, 44, feels constantly aroused and the slightest movement can trigger a climax.
Trains, driving and even housework start the reaction.
The orgasms leave her in pain, exhausted and unable to have a normal relationship.
“Other women wonder how to have an orgasm - I wonder how to stop mine,” a major newspaper quoted her as saying.
Kim was diagnosed with incurable Persistent Genital Arousal Disorder.
Doctors blame spinal cysts caused when she fell down stairs ten years ago.
Kim, from Hitchin, Herts, but now living in Montclair, New Jersey, US, first had problems after sex with a new boyfriend in 2008.
“I had constant orgasms for four days. I thought I was going mad. It also happened with a new partner and I even tried sitting on frozen peas,” Kim said.