I'm continually surprised by those who keep their heads so firmly in the sand dismissing promising solutions. And seek to dissuade others from these potentially promising approaches.
I have gotten excellent help from my naturopathic doctor and a noted ME/CFS specialist, both of whom practice functional medicine.
My naturopathic doctor has done excellent diagnostic lab work and prescribed a ketogenic diet, hormones, drugs, nutrients and botanicals that have kept me functioning. The specialist was able to take that good work and drill down deeper to get me farther down the road and I never would have sought him out without the work my ND had done.
This is after getting absolutely no help from over a dozen MDs, including a rheumatologist, an endocrinologist, a neurologist, a hematologist, and an infectious disease specialist.
Here is some info on functional medicine:
https://p.widencdn.net/xazlwe/Intro_Functional_Medicine