I am a female, mid 40's, who's had PVC's for over 20 years-usually made worse with exercise or caffeine. Been through all the tests a few times and nothing alarming has ever been noted. Rarely, but sometimes, they are painful, feel like a hammer hitting me in the chest and taking my breath away for a moment, never lasting longer than a few seconds. My question is, 'has anyone out there ever climbed high elevations with this condition?' I love to hike and have hiked to 12,000 feet without a problem, however, my regular doctor is telling me not to do Mt. Whitney (14,500) because she thinks my heart will start skipping/adding beats at the higher elevation because of the lack of oxygen, while my cardiologist thinks it's no big deal. Does anyone know of anyone with this condition who has climbed high elevations and what was the result? Thanks!