Study cautions against statins as general preventive medicine

You'll find out how up-to-date and informed your doctor is if s/he brings this up before you start asking about it. You do expect your doctor to know more about medical stuff than you do, don't you?
http://medicalxpress.com/news/2015-08-cautions-statins-medicine.html
Statins' success in reducing atherosclerosis-related events has elevated the medications to wonder-drug status, with some researchers advocating for their wider use as a preemptive therapy for cardiovascular disease. Using statins, however, can have side effects, including memory loss, muscle problems and increased diabetes risk. A new study in the American Journal of Physiology—Cell Physiology explains why statins are more beneficial in some cases than others and highlights the importance of weighing individual risk when considering statins as a preventive measure. 
More at link.

Even this one is not up-to-date because the idea that statins cause memory problems has supposedly been refuted.

No link between statins and cognition

Because no one seems to know anything definitive about stroke, prevention or anything useful at all for survivors, you are completely on your own and will have to become your own medical advisor. Hopefully you won't get charged with practicing medicine without a license, as compared to your doctors practicing medicine with no knowledge at all.