It looks like they just did a blood panel and Spec cPL.
If you are thinking it is gastrointestinal, they could go further with something like a TLI with B12 and folate.
If you think it is neurological, the next step would be a bile acids test.
And for pain, I just don't know. Xray everything?
If she isn't favoring any area, it could be a long process.
