WORRIED

OK I HAVE 2 QUESTIONS, FIRST LET ME EXPLAIN IM TAKING DIOVAN 160 MG ONCE A DAY FOR MY HIGH BLOOD PRESSURE, & THE QUESTION IS WHY HAS MY PULSE DROP DOWN TO IN THE 50'S AND MY PRESSURE IS STILL ALITTLE ELEVATED 138/89, AND I DO SUFFER FROM ANXIETY, IM JUSS ALITTLE CONCERNED ABOUT MY PULSE BECAUSE MY DOCTOR TOLD ME TO CONTINUE TO TAKE THE MEDS AND JUSS CUT THE PILL IN HALF! AND MY LAST QUESTION IS IF I HAD A MRI DONE BACK IN 2004 AND WAS CLEARED FROM BRAIN ANEURYSM IS IT POSSIBLE ONE CAN APPEAR THIS YEAR WHEN I GET TESTED AGAIN?? BECAUSE I HAVE BEEN FEELING THIS HEAVINESS IN MY HEAD OFF & ON, SOMETIMES I THINK MAYBE ITS JUSS MY SINUS BUT IM REALLY SCARED AND WOULDN'T THEY HAVE PICKED UP THAT I HAD A BRAIN TUMOR WHEN I HAD THE MRI DONE?? I DON'T GUYS IM JUSS REALLY SCARED TO GO BACK AND GET TESTED AGAIN, IM WONDERING IS IT TOO SOON BUT I KEEP GETTING HEADACHES & THINKING MAYBE I HAVE A TUMOR OR SOMETHING!! SOMEONE PLEASE TELL ME WHAT THINK??