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

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  1. L

    B12 and Insomnia

    Hi Melissa, Have you considered cutting off on vitamin D for a while. It can mess up sleep, especially if taken in the evening or not properly balanced with cofactors (magnesium, vitamin K, etc.). But hopefully you already solved your problem time ago. All the best.