How often does sudden asystole occur? No heart disease ,
I would explain as follows:
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Regarding your question, I would explain that a cardiac electrical standstill may happen even in normal healthy individuals and may reflect a vegetative nervous system modulation on cardiac sinus pacemaker.
Normally it rarely last more than 3 seconds in awake conditions. But, if such is the case, it is necessary to get in further clinical investigations for defining other underlying issues. This is true, especially if clinical symptomatology is present.
You need to discuss with your doctor on the above mentioned issues.
Hope to have been helpful to you!
In case of any further questions, feel free to ask me again.