Suggest Remedy For High BP

I AM 51 YRS OLD AND HAD UNEXPECTED ELEVATION OF BP AT 180/90 AND NEAR SYNCOPE - IN OFFICE MY BP WAS 150/90 - PCP STARTED ME ON LISINIPRIL 10MG DAILY - US OF KIDNEYS SHOWED NO RENAL ARTERY STENOSIS BUT MILD PELVIECTASIS ON (R) - B P IS 130/70 NOW AND AM SCHEDULED TO SEE UROLOGY TOMORROW - INCIDENTLY, I HAD BREAST CA 5 YRS AGO WITH NO LYMPH NODE INVOLVEMENT - COULD THIS BE CANCER? I HAVE NO PAIN, URINE SHOWED TR OF BLOOD - CR NL