Just found this article published last Nov, maybe you've all seen it already. Also been hearing these Gut topics discussed on Public Radio recently: news.sciencemag.org/biology...
And this video on the gut and micro organisms.
I suspect the harsh MTX and Plaq meds are killing any good bacteria so its a loose, loose even when we take tons of Probiotics. Going to share this info with my Rheumy anyway and see what she says.