• 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 (FM), long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.

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  1. L

    Could it be POTS?

    Hi all, I've been a cfs sufferer for 8 years and also have a diagnosis of panic disorder due to bad palpitations (especially first thing in morning and at night, awful after eating carb heavy foods). I read about PoTS/OI online since realising my heart rate is getting high from doing very...