Also not OP, but I recently got diagnosed with (another) autoimmune disorder solely because a single doctor twisted my arm into getting some unpleasant tests done. Turns out I have Crohn's disease and not just an unusually capricious stomach. (Also, thankfully, turns out Crohn's symptoms get significantly better with treatment.)

But if I hadn't been willing to power through the time and money and discomfort of getting tested, I probably would've remained undiagnosed for years. I'm thankful we caught it now and not before things got bad enough to land me in the hospital.