I can't speak to your condition, or situation, but last November my heart went into afib. 4 1/2 days in the hospital, I was released with the following instructions:

1. If my heart rate is 45, and I'm not symptomatic, don't worry about it.
2. If my heart rate is 160 and I'm not symptomatic, go to the Emergency Room.

Clearly, in my case, they weren't worried about the slower rate. My resting rate, on Beta Blockers, before afib, was in the 50s. How I wish for those days again. Released from the hospital, it was about 85, and with an increase in Beta Blockers, it's in the mid 60s to mid 70s.