Hi L.,
Incorporating the spiritual medicine perspective can be very clarifying for a woman caring for herself and her family. Yogic anatomy, tribal medicine, and the modern bodymind family health philosophy (from such people as authors Jeannine Parvati and Christiane Northrup MD) approach physical health as a manifestation of the outer energy bodies, i.e., the emotional and mental bodies, the soul.
"Our children are what our love looks like" is what JP taught, and what has been helpful guidance for mothers time and time again. This perspective boldly takes responsibility for our own personal process as parents, and invites us to seek out the spiritual lessons in various situations, and create healinng. Children are like sponges for any and all negative emotional energy in the family, even when it is not directed at them personally.
Significant weight loss in a child, though it has physical components (parasites, celiac disease, toxicities, eating disorders) points to a greater energetic imbalance in the family. Even if the physical factor is addressed, if the subtle root causes are NOT, the child will manifest another sort of imbalance in its place, weeks or months later.
Children bear the truth of the adults, even if adults may deny the truth, which adults often do. Children reflect the true vitality of the marriage, etc. Whatever we go through in helping our children sustainably heal from things ranging from eczema, colds, flus to weight loss and broken bones changes US in the process. True healing of childhood illnesses/injuries harmonizes a family, and can really bring a family closer together.
That said, it can be very helpful to come up with some questions for personal reflection - to send into your intuition, or prayers, or dreamtime - and let the answers reveal themselves to you over days and nights. For example (just examples, some may or may not seem relevant to you, or they may seem scary, but it's absolutely essential that we are willing to be fearless mothers):
"What is wasting away in our family?"
"How has stress affected our emotional nourishment?"
"If my daughter is not absorbing food, what is she absorbing?"
"Could this child have endured any trauma I might not know about, at school, at other people's houses, etc."
"What do I need to do for my own physical and spiritual nutrition?"
"Has my husband taken on any addictive behavior this past year?"
"If so, is the marriage capable of communicating about it?"
"How can our love feel better and flourish in a truly healthy way?"
It's my belief and experience that our intuition and soulful inquiry skills are God-given, and when we as mothers are attuned to this, God/The Divine clears the way. Hope this helps!