Hello. I am a 27 year old man with no known health problems. I was checking my blood pressure at home with an automatic machine. (Omron 7). My 2 year old was sitting next to me on the bed and moved his legs kicking the cuff a couple times during the measurement. I figured it would be inaccurate as this caused movement and I also talked to him once he moved. It displayed a low reading for me but what was alarming was that it displayed an irregular heartbeat symbol. I have never seen this symbol in the past and I did not know if it was because of him bumping the cuff during the reading or not. I checked it again after and the symbol did not show up.