Tante:
Thanks for posting this. After 30 years since first symptoms and still in limbo it's not hard to relate.
You were credible all along. The doctor who dx'd you 30 years ago before MRI's and all the technology was credible too - back then doctors relied on the patient's accounts, signs and symptoms and their gut reaction.
I'm not too far behind you in age - still waiting to get some credibility myself.

It makes perfect sense that it was a relief to get confirmation.
Best of luck choosing your course of meds and treatments.