Finally, we caught it on an event monitor and it was diagnosed as Paroxyxmal Atrial
Tachycardia. I assume this is the same as PSVT? Due to relocation, change of doctors, etc., I have ended up with three doctors all giving me different advice. They all agree that it is benign, but aggravating. I get lightheaded, cough and feel somewhat "confused" when it happens. Nevertheless, they've assured me it's ok.