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 (FM), long COVID, postural orthostatic tachycardia syndrome (POTS), mast cell activation syndrome (MCAS), and allied diseases.
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Things that will cause a crash or God forbid, a relapse....in order of severity: Over exertion physically, catching infections (flu, etc), emotional stress (especially frustration), most meds that push my system to work harder (ie. cortisol, antidepressants, etc), and wrong foods. All have a delayed onset and peak in severity.