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    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. Pyrrhus

    Is SIBO caused by dysautonomic gastrointestinal motility?

    Small Intestinal Bacterial Overgrowth (SIBO) is a common diagnosis these days in ME/CFS patients. The most common reported symptoms are gas, bloating, and constipation, although there may be others. Diagnosis is often based on a breath test such as the lactulose breath test. Some people report...