yes i am a healthy 30 year old woman ,yesterday i had this strange thing happen,i was driving down the road and  a sudden pressure came on my chest and my vision blurred out....i slammed on brakes and no sooner then i came to a stop every thing was normal again.
Thanks for your question on Chat Doctor. I can understand your concern. Sudden chest pressure and blurred vision is indicative of some heart disease like high blood pressure, reduced cardiac pumping etc. So better to first rule out these cardiac diseases. So get done blood pressure monitoring, ECG, 2d echo. If all are normal than no need to worry about major heart related causes. Sometimes stress and anxiety can cause similar symptoms. So avoid stress and tension, if you have stressful life. Don't worry, you will be alright, but first rule out heart diseases. Hope I have solved your query. Wish you good health. Thanks.