Many things: This can be either due to heart or non-heart reasons. Of heart causes, would consider a tachyarrhythmia (e.g. Svt, atrial fibrillation, atrial flutter) - would need an event monitor to check this. Also consider some other causes (not a comprehensive list due to space limitations for answers, but more commonly tested): hyperthyroidism, anemia, illness, pheochromocytoma, or panic/anxiety attack, .
Answered 4/25/2019
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Many causes: There are many possible causes. Emotional, physical, psychological or pathological. You need a comprehensive work up by a competent physician...Asap!
Answered 9/5/2017
5.2k views
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A doctor has provided 1 answer
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