I’ve had thrush/gum issues for a while now too and have had some relief from “Oil Pulling” with coconut oil. http://www.thecandidadiet.com/oil-pulling.htm If I miss a day or so it starts to creep back so I’m trying to do this EVERY morning!
I’ve also had MANY opportunities for diagnosis (dentists, doctor’s “stick out your tongue and say ah…” and also a Chinese Herbalist who CLOSELY examined my tongue) No one said a thing! (had always ‘personally’ thought that ‘coated’ tongue=sick but not a word from the professionals! Crazy!)