Hi l have a Omron home blood pressure monitor and on medication for high blood pressure , l am 43 years old. About once every 15 or 20 tests the irregular heartbeat symbol appears, l follow the instructions and wait a few minutes and test myself again and the symbol never appears again in the second test. Should l be worried or could it be a false reading if it only shows up every 15 or 20 times use the monitor, is it normal to get an occasion irregular hearbeat reading on these machines?