22 got post orthostatic tachycardia syndrome. my heart rate sometimes is 52-58 resting but usually 60-80. is the low hr dangerous? see tests on profi

HR not dangerous: Postural orthostatic tachycardia syndrome (pots) is characterized by tachycardia, elevated heart rate, on standing with decrease in blood flow to the brain. A low heart rate is not part of this diagnosis. Some pts have associated vaso-depressor syndrome which can cause a low BP and sometimes a low heart rate (cardio-inhibitory). Your hr is not in a dangerous range unless symptoms present.