Playing them at their own game
I'd always considered that my own GP had been as helpful as he could, given there's as yet no magic wand for this illness, but like Justy I'd found that despite the guidelines, I wasn't being offered anything by the way of care from the NHS.
After being stamped 'ME/CFS' (by a consultant) I found that my GP wouldn't say 'ME' or even 'CFS', more than that in over four years he's never once put that down as the reason for signing me off work, it's always a symptom description which avoids using those terms, something that can make things difficult at work when you're trying to convince them you have a recurring crippling condition. But of course, to use either term would be to reinforce my illness belief.
I got to the point where I was asking myself why it was that I was trying to justify my illness to the people who had saddled me with the title and I'm pretty sure this is the psychology behind it. They have a duty of care for us, we present ourselves requiring care, they collectively are unable to provide that care, BECAUSE THEY DON'T KNOW, THEY DON'T HAVE THE ANSWER. But hold on, that's their job, they get paid staggering amounts of money from our taxes and, well, get to go home jolly dammed pleased with themselves for the service of life they bring.
So feel for them for a moment, you've just walked into their office and shoved a personal shortcoming right up their nose, so what are they going to do to recover from such a blow. Easy, they reverse responsibility, yes, he thinks, I don't know the answer because there is no answer, there is no illness else I must be fallible, ergo it's all in the patients head (sorry I'm thinking Homer Simpson here).
Seriously though, look at the attack on Mella and Fluge right after publication, the denigration of good science on XMRV regardless of the outcome and you realise that it's not us who are invested in this illness but them, from GP right up the chain, for them to be infallible we have to be delusional, that's the only way there can be no error on their part, nothing they don't know.
Once you realise that this is where your GP is working from and how little he actually knows about this illness you can start to have fun chipping away at his cloak of infallibility. How, well if you've ever had private lab work done, share the results and ask for his opinion, that's sure to crack his all knowing aura. Another good one is to ask him if he's aware of whatever the latest studies are, if he's like mine he won't have a clue so tell him, practice what youre going to say if needs be, the more you can show him how in touch you are and how out of touch he is the more you'll chip away at what is ultimately a myth, infallibility.
"Pushings easy, when you don't have any backward stepping bones"