• Welcome to Phoenix Rising!

    Created in 2008, Phoenix Rising is the largest and oldest forum dedicated to furthering the understanding of, and finding treatments for, complex chronic illnesses such as chronic fatigue syndrome (ME/CFS), fibromyalgia, long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

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Dysautonomia: Problems Standing, OI, POTS

Problems when you stand or sit up? Discuss the various forms of orthostatic intolerance (OI) found in ME/CFS, including orthostatic hypotension (OH) and postural orthostatic tachycardia syndrome (POTS). (Other symptoms of dysautonomia are discussed in the "Dysautonomia: Cardiovascular, Respiratory, etc." forum.)