Thank you for this thread and taking the time for updates and responses. It's been a big help to me.
You are welcome - nice to know that someone is reading
Something worth reading is Rehmannia - this is one of the prized Chinese herbs, I think it is a flower. I never heard of it despite trying and reading a number of Chinese formulas. I bought Planetary Formulas Rehmannia Endurance, it was inexpensive. It supports a number of processes in the body and particular the gut, I think it targets the mucous membrane which is showing up as a vital part of the immune response.
I gave a sample to a co-worker and he has reported similar results. No significant problems to report so far.
That formula is based on a 1,000-year-old Chinese formula. So far, the formula has smoothed energy where it seemed to stop the complete fatigue (exhaustion) and provided a smoother energy curve (more stabilized). I have read a number of journal articles of rehmannia effects in the gastrointestinal tract and the formula contains plantain which is another studied herb for gut health.
Whether it works for everyone is questionable, but for $10, it was an easy choice. *
====== Article on rehmannia and gastro: the article discusses the herb in relation to colitis but the bigger issue is the ability for it to reshape the microbiota and butyrate production.
https://pubmed.ncbi.nlm.nih.gov/36347632/
Results: The results showed that rehmannia attenuates lipopolysaccharide-induced overexpression of inflammatory factors, improves tight junction proteins to protects the tightness of the intestinal epithelium; , inhibits the expression of inflammatory factors through the NF-kB (nuclear factor-kappa B pathway, and improved the of intestinal tissues inflammation.
It can maintain the species diversity of intestinal microbes, increase the content of short-chain fatty acids and then restore the imbalance of intestinal microecology.
*that formula contains some other herbs which may or may not be beneficial. Perhaps just rehmannia by itself? As mentioned, the formula also contains plantain which is another studied herb for gastro issues.