So, wow, 5 weeks ago had a two chamber pacemaker installed due to slow heartbeat and heart beat stopping for 3 to 5 second intervals. Feel a whole lot better. So I am amazed at some of the posts here. You can actually tap on your pacemaker to speed it up, seriously? The other day my smart watch said my heart rate was at 134, and at the time not doing any type of physical labor. I have a Medtronics unit. Any comments with truthful answers appreciated! Lol.