• 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.

Search results

  1. C

    High Reverse T3 (rT3)

    Hi, your explanation in first paragraph is absolutely correct. Too much RT3 blocks T3 at the cell and that being the case, you will feel horrible. I am diagnosed hypothyrod. While my thyroid panel test results now appear normal (TSH;T4;T3) I have still been feeling awful for a long time. So I...