• 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.

    To become a member, simply click the Register button at the top right.

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To join Phoenix Rising, you must agree to the following terms:
  • You must have ME/CFS or a related condition (such as POTS, dysautonomia, Lyme, fibromyalgia), or be a caretaker of someone who does.
  • You must not post weblinks to personal businesses, or solicit members for any business purposes.
  • You must post in English (the forum language).
  • You must also agree to these additional terms and rules and this privacy policy.
Note that only one account per person is permitted. Researchers seeking study participants: please write to contactNotDisplayed@phoenixNotDisplayedrising.me to obtain prior approval.