That's really not bad, mine changes beats like that, sometimes it's in the 50 other times it's in the 80 .
Sounds like your very in tune to your heart as I am, I can feel every wrong beat, paps skips, flutters
Mine is worse with anxiety
I hope your feeling better tonight
Today it's been 89 to 100 all day and I can fell it in my chest
And tonight I could fell my heart beat so I mates down and felt the beating in the bottom of my neck for half a hour or so and felt a slight tingle in my chest I hate it I keep telling the doctor but he refusing a ecg