Hi, all! I've just started using a heart rate monitor in the hope that it will help me with pacing, which I'm finding difficult to get right. However I've also notices that my heart rate is shooting all over the place. My resting heart rate is naturally pretty low - around 60-64 bpm. But it'll shoot up into the 80s if I just walk across the room, and a little job like loading the washing machine will take it up to around 110. Is this normal?