Occasional white light flash in my peripheral vision, I am seeing this to my left eye only..any of you going thru something spiritual changes or doing meditation whrn it started. I might think this is the reason as am meditating a lot in which usually eyeballs have imp roll..
Some forms are called paroxysmal atrial tachycardia (PAT) or paroxysmal supraventricular tachycardia (PSVT). Electrical signals in the heart's upper chambers fire abnormally, which interferes with electrical signals coming from the sinoatrial (SA) node --- the heart's natural pacemaker.
Postural tachycardia syndrome was coined in 1982 in a description of a patient who had postural tachycardia, but not orthostatic hypotension. Ronald Schondorf and Phillip A. Low of the Mayo Clinic first used the name postural orthostatic tachycardia syndrome in 1993.