ND, not getting stones makes me question if she's been doing parasite cleanse. flush ... kill the bugs ... flush ... kill the bugs, etc. Chaff is debris from the liver. It contains toxins. Better out than in!
If the enema's were all that, would there be debris sitting in the liver?
I doubt that colonics have much to do with the condition of the liver, more the other way around.
Enemas can be quite destructive. Do you have a very good herbalist that can recommend herbs that will rebuild her alimentary sytem now that she has it clean? It's that weed & feed thing.