* Ddx includes cardiac arrhythmias ('''VT after MI or iso cardiomyopathy occurs without warning symptoms'''), vasovagal, seizures, orthostatic hypotension, SAH, vertigo, symptomatic anemia | * Ddx includes cardiac arrhythmias ('''VT after MI or iso cardiomyopathy occurs without warning symptoms'''), vasovagal, seizures, orthostatic hypotension, SAH, vertigo, symptomatic anemia |