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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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muscle pain

  1. Beartiger

    Involuntary muscle contraction during sleep?

    Hey, I'd like to know if someone else has this problem, because I haven't been able to find any information online. I have the usual muscle soreness and pain, but a while back I noticed that when I sleep, I contract all my muscles involuntarily, and this causes me to wake up with even more pain...
  2. chilove

    What could be causing sudden new symptom of weak and burning, aching muscles in my legs?

    Looking for suggestions on what could be causing a recent and sudden new symptom: Aching and burning and sore muscles in my legs? It started with my left knee suddenly giving out while I was walking but it didn't hurt, my knee would just sort of buckle. Then it progressed to that knee getting...
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