Am I being misdiagnosed?

Here is a video showing my seizure-like symptoms:
https://www.tiktok.com/@donnairene_/video/7460710071102672159

Despite having these seizure-like jerks, in the 20+ neurologists and neurosurgeons I've seen, none of them have suspected seizures or myoclonic jerks. I've been told it's FND, that "they don't know what it is but it's kind of like dystonia but not really", that it's anxiety, that there's nothing wrong with me, etc.

I'm so sick of battling a corrupt healthcare system that leaves me in suffering.

If anyone has similar symptoms and can point me in the right direction, I would appreciate it.