As some of you might know this condition is a mixture of hormones - brain - gut imbalance that leads to a systemic exhaustion. I have been reading this book which sheds a lot of light into the gut-brain connection. For anyone that is interested in knowing more about pro & prebiotics, the gut microbiota, how its balance affect the system holistically, and some ways to heal the gut and the brain. Particularly if you think your digestive condition is somewhat poor, I strongly suggest to take a look into this book written by a neurologist but explained in a way that anyone can understand:
https://www.amazon.com/Brain-Maker-P.../dp/0316380105