Has anyone had their own personal heartbeat shoot up from the 70's to the 110-120's overnight? Literally. I measure my…

Has anyone had their own personal heartbeat shoot up from the 70's to the 110-120's overnight? Literally. I measure my heart rate each day, just a habit I had even before pregnancy and I kept thinking something was wrong with the device when I kept getting that number.... Tried again couple hours later, still getting similar numbers consistently.