Oh that's rich.
Anon likes how the Mayo Clinic doesn't have any specific idea about where it comes from, but dares not mention anything about vaccination. Nor do other mainstream sites.
Also interesting this article comes out in October before the vax starts rolling out to the masses.
https://www.msn.com/en-us/health/medical/what-is-functional-neurological-disorder/ar-BB19NPIa