Black walnut will kill yeasts for sure, butb the loose stools are normal for your first go round with black walnut hull or if you haven't used it in a while. clears out your kidneys, you should feel real good after that too.

when you kill yeasts you also kill good bacteria and that may be the bigger issue. make some kefir with all that egads of raw milk and that should cure the problem I wish you could send me some.