I wonder if I've made some mistakes in the past by misunderstanding somebody who used the initialism "RSD". To me, that meant Reflex Sympathetic Dystrophy. An older name for a version of Complex Regional Pain Syndrome. It's also a thing that you are likely to find skepticism or stigma about...

Doctor the Frog, Helpful tip ON HERE it's one thing OFF HERE & it's another

The Reflex Sympathetic Dystrophy version of it was something I treated as a pain management specialist. Patients often had histories of having their symptoms disbelieved or minimized. So I suspect that occasionally I could have missed which RSD somebody was talking about...