For practical purposes, let’s say they use your own energy. It depends on the field, but energy fields will always complement the work of the healing fields. Same as getting plenty of water.
And for certain kinds of healing, you’d need “excess nutrition”. The fields are very effective. Physical processes can be accelerated by several factors with them. And so, you have to keep up with them.
As for finding balance, some general healing field, grounding, acupressure/acu-automaton, five elements balanced (there are several fields for the five elements) and torsion field can help mitigate many abreactions and put everything in place.
Increasing capacity (soul core, aura repair, energy expansion and attunement cards) would also do you good. I assume you’re using nerve healing and antioxidant fields already, and that’s a good thing, for all energy flow related things.
For other things to flow in your body, the blood flow and lymphatic effusion fields are wonderful.