I reckon someone recommended a scam doctor who'd give her a fake diagnosis so she can present herself to the judge as unable to work.
She thinks she can carry on fleecing Ioan indefinitely. Moo.
she mentioned being diagnosed by the 13th doctor years ago. the thing is though that she has contradicted herself since many times.
I reckon doc #13 simply took her more seriously rather than saying "you are fine, just cut out the alcohol and exercise more" and gave her the meds needed to reduce her pain but may actually not made a actual diagnosis, basically a "treatment A because suspicion of diagnosis B", doesnt even have to be a scam doctor though I suspect if 12 doctors disagree it may.
Fibro is hard to diagnose and it all depends on how you trust the patient. Given her life style and that she said her crp is low (which doesnt have to mean anything but still) I am not surprised that 12 doctors thought she had other issues.
also fibro is not stopping you from working.