I don't have your condition but on its worse times my circular system was about to shut down, my 4 limbs were cut to sustain the rest. For months Any activity in one part of my body would cause the rest to feel numb. Even typing with two hands would saturate my brain. The story makes them smile as in "you wouldn't be speaking anymore if you experienced this". If I had a trace of the sudden lack of blood pressure they'd at least have something quantitative to consider rather than borderline incoherent speech. That said most generalist wouldn't consider it anyway as you said.