• 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.

    To register, simply click the Register button at the top right.

Delayed Reaction To Probiotics

I experence a peak in symptoms following probiotic usage. While I typically have die off effects while taking them.. it peaks, rather severely, about 3 or 4 days after stopping them. Does anyone have any ideas why this would occur?