I'm sorry that your partner is sick; she is lucky to have you.
My personal opinion is that virtually all doctors claiming expertise in ME/CFS should be left well alone. I think it's best to just try to find the smartest, kindest GP near you, and expect nothing from them with respect to ME/CFS-specific care.
I know it is hard to believe that it could possibly be true that there is no useful specific help to be had from medical professionals, and it certainly shouldn't be that way.
Is there any particular treatment or care that your partner is wanting from a doctor?