Gosh, you poor things!! Anyhow, you only started the probiotic (and stopped the GSH) 5 days ago. If deranged gut flora is the primary problem--and it sounds like the expander must be part of the problem, too--then you have a long, hard slog ahead of you before these problems get tamped down.

My advice (I'm not an MD) is that you get yourself to a medical practitioner (GI guy, naturopathic, whoever!!!) who takes deranged gut flora seriously. And do it immediately! Get that stool testing done, get rid of that yeast, rebuild the gut flora, reintroduce GSH, use lecithin and choline, work with your dentist on the expander issue (can it wait a bit??), ask if the Prilosec is negating her gastric lipase action . . . . do everything you can think of, and then keep doing it for 4-6 months. That is the usual time frame for turning around messed-up gut flora.

Ah, you poor things. I'm so sorry to hear about your struggles and frustration with this . . .