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Ive had about 15 blackouts now in past few months, lots of tests. Does anyone know if it's a "normal" reaction for heart rate to increase (from 96 to 150) after the GTN spray on the Tilt Table Test? My blood pressure remained the same but I could feel my heart getting faster and I became all hot and sweaty although I did not blackout. Dr says I have postural hypotension and reflex syncope and have to self manage it. It's generally the pounding heart that comes on when I'm standing still that precedes a blackout, if I can sit or move about it recedes but sometimes just happens too quick. Is that part of the symptoms of Relex syncope and can it have any long term effects on the heart? Im constantly tired and with or without blacking out the symptoms leading up to it just drain me.
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