dr. jon lapook has more. >> reporter: three years ago, sheryl o'connor, a registered nurse, became her own patient when shenly had trouble forming words. >> as a nurse, i said, "this feels funny." i got up, and i went into the bathroom, did a quick neuroexam on myself. i said, okay, something's not working right. >> reporter: at age 49 she was diagnosed with a stroke. dr. andrew russman is a neurologist at the cleveland clinic. >> i think it's very important that we have a set of guidelines that raises awareness among women, especially women who don't traditionally think of themselves as at risk for stroke. >> reporter: for both sexes, risk factors include age, high blood pressure, smoking and high cholesterol. today's report outlined the unique risks women have, including gestational diabetes, use of birth control pills, especially for those who smoke, are hypertensive or have clotting problems. and high blood pressure during pregnancy, which can lead to a condition called pre-eclampsia. women with a history of pre-eclampsia have an increased risk for stroke even 30 years later and should be closely monit