I have been taking 10mg Lisinpril daily for 10 years. I m 52 years old...and in relatively good health. My regularly blood pressure if roughly 120 over 70. I recently had a doctor up mu dose to 20mg daily because I had a very small amount of protein in my urine. I have been on the higher dose for about 2 weeks. Yesterday, I started having a heart flutter ....some sort of an irregular beat.....about every 5 or 10 minutes at one point. Today...its several a minute. No pain or other symptoms. Could it be from the higher dose of Lisinopril? I m going to the ER soon to get an EKG...or whatever they will do.