Regarding your last point: If you feel fine with your current ssri dosage please don't increase it just because of heart rate spikes - they aren't antiarrhythmic and if you take more ssris despite feeling subjectively fine all you're doing is treating numbers, not yourself.
AustrianReaper t1_itfc7tl wrote
Reply to comment by BisexualSunflowers in Apple Watch heart rate notifications helped 12-year-old girl discover and treat cancer. by SUPRVLLAN
Regarding your last point: If you feel fine with your current ssri dosage please don't increase it just because of heart rate spikes - they aren't antiarrhythmic and if you take more ssris despite feeling subjectively fine all you're doing is treating numbers, not yourself.