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Introduction Postural tachycardia syndrome (PoTS) is a form of dysautonomia, a term used to describe dysfunction of the autonomic nervous system. Those living with PoTS can experience a vast array of symptoms that can be life-altering and debilitating.1 As well as a significant increase in heart rate upon standing, as a result of orthostatic intolerance, syncope and presyncope can occur, along with headaches, fatigue, palpitations, nausea and dizziness, which are usually relieved by lying down.2 Other autonomic functions, such as digestion, bladder control, temperature regulation and stress responses, may also be affected. Onset can be sudden