[alexander_busek]

If one looks closely, one can see that this video clip was, in part, looped - i.e., a second or two of it was repeated, for (false) effect.

No story.

Regards,

[carcraft]

No it isn’t, the video can be seen from several angles taken be different cameras. There is an angled back view and a front view. They are posted by different people.

[Helicondelta]

“No story”

Well, a neurologist (comment #76) disagrees.

[exDemMom]

Unlooped video

Her head bobs 5 times, then there is a brief break where she breaks into a big smile, then her head bobs 3 or 4 more times strongly with the movements devolving into a kind of head wobble.

Look at the slow-mo in the video posted at the beginning of this thread: her eyelids are fluttering and her eyes are moving side to side. Something is wrong, and it is a lot more serious than "brain freeze." Her non-sequitur question about the chai at the end is to try to cover up the incident.