Suggest Remedy For High BP And Irregular Heartbeat

I use a blood pressure self test machine I am a male 56 years old have high blood pressure and take lotrel and tricor to keep it in check. I have had a history of irregular heartbeat ,found by my doctor, have had stress tests done with no problems found. On my blood pressure machine the last 2 weeks a irregular heartbeat has been showing up on the machine ,I have never had this before,I even put in brand new batteries but it still comes up.I feel normal- nodizzines,no shortness of breath, no symptons whatsover ,basically I feel fine .I dont want to go to my doctor, go get tests to again find nothing. Is this something I can just pass by but understanding that if I get any symptons I will then seek medical help What do you think?