Kim Ramsey, 44, has a medical condition which makes her feel constantly aroused.
Even the slightest pelvic movement - on a train, in a car, doing domestic chores - can trigger a climax, but the sheer volume has left her tired, in pain and unable to have a normal relationship.
Ms Ramsey, a nurse originally from Hitchin, Hertfordshire, suffers from Persistent Genital Arousal Disorder (PGAD).
Doctors believe the incurable syndrome was caused by an accident in 2001 when she fell down some stairs.
This may have led to a Tarlov cyst on her spine, at the point where a woman's orgasm originates.
'Other women wonder how to have an orgasm - I wonder how to stop mine,' she told The Sun.
Ms Ramsey, who has since moved to Montclair, New Jersey, first noticed the problem in 2008 after having sex with a new boyfriend.
She said: 'I had constant orgasms for four days. I thought I was going mad.
'We tried everything to make it stop. Squats, deep breathing, I even sat on frozen peas but the orgasms and sexual arousal continued for 36 hours - I must have had around 200 orgasms during that period. The pain and exhaustion was excruciating.'
She said she no longer feels like she has control over her own body: 'Imagine feeling aroused for no reason other than you got up that day.
'Every jerk of the train or vibration made me more aroused and it was a 40-minute journey so there was nothing I could do.
'I just had to bite my lip and sit on my hands and hope no one noticed.'
