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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. Jwarrior77

    Why do some B vitamins make me extremely tired?

    So this is a puzzle that I'm trying to figure out. Before I got sick I could drink 3 energy drinks full of b vitamins and be totally fine. Now I can't take a low dose b complex without either going into a coma or having some bizarre fight or flight reaction. Literally a couple months after...