I don't know if you've heard how easy it is for just about anybody to fake a video these days, but in research we call that anecdotal at best. Follow up on it. Who is that person, what are the circumstances, can you verify that it happened, can you verify that they different have that exact disorder before the shot, and can you verify that more people than the ordinary average are getting these neurological disorders? There's a lot that goes into it and most of these videos just turn out to be a bunch of dingbats saying what you want to hear.