Hi Rachael,
at this point we begin by focusing in on one certain reaction, not the whole complex picture, to not get overwhelmed. Usually it's like draming a thread out a knitted sweater - having started, everything tends to come apart and the picture unravels more and more.
Talking about osteoporosis, losing structure and self-confidence is a typical theme involved and it belongs to "New Brain" themes. Having said that, there are other factors that can play a crucial role, but we can break the pattern and support healing when we help our inner structure, when we don't exploit ourselves. 
The digestive system interacts with that: you may often take on "too much to digest" in terms of challenge, overwhelm prevents you from absorbing nutrients, and that in turn may lead to self-devaluation...
You can check if that rings true to your pattern?