yeahbut,
I'm sorry to hear that you're having to experience this. There is a political undertone to this that bugs me. I'll leave it at that.

I know a good bit about the CRAB's, nothing about LDN. LDN might be the way to go, sounds inexpensive and I know a lot of folks swear by it. You might want to consider antibiotics. I don't think it's as inexpensive as LDN, but two of the three parts are available as generics and it's not nearly as expensive as health insurance.
Ken