HI, I AM A RN BY PROFESSION,BUT I HAVE A HARD TIME BEING MEDICALLY MINDED WHEN IT COMES TO MY LOVED ONE,EVERY THING I KNOW GOES OUT THE WINDOW BECAUSE I HAVE SEEN SO MUCH STUFF AT THE HOSPITAL THAT I HAVE WORKED AT FOR 14 YEARS,I JUST DON T WANT TO OVER REACT.MY HUSBAND IS 45, OVERWEIGHT , DRIVES A TRUCK FOR 10 TO 12 HOURS 6 DAYS A WEEK,DOES NOT EXERCISE OR EAT HEALTH,HE IS EXPERIENCING AN IRREGULAR HEART BEAT.IT SOUNDS LIKE LUB DUB,LUB DUB,LUB DUB,2-3 SECOND PAUSETHEN STARTS REGULAR BEATS WITH A PAUSE AT DIFFERENT INTERVALS.HE TAKES METAPROL TARTATE 50 MG 2 X ADAY ,MEDICATIONS ARE CONTROLLING BP AND HEART RATE QUITE WELL FOR SOME TIME,HE HAS NO PAIN OR ANY NEGITIVE SYMPTOMS, WHAT COULD BE CAUSING THIS CHANGE IN HEART RYTHUM?