Sorry to hear about the struggles with getting her support. I feel like you’ve talked about emetophobia, contamination (which can easily all be based on the fear of throwing up), existential OCD themes (taken away and put in a new body), magical thinking (that can be driving her mental compulsions: if I do this, then this won’t happen etc).
Here are some videos on those topics. Also I asked Ayla to email you with another resource I want to send your way, so look out for her email:
Fear of throw up: https://youtu.be/oShDAdBugJ0
Existential: (not my video) https://youtu.be/CDJI0hS4_Oc
Magical thinking: https://youtu.be/Vb6fs_KHBTw