Couple things to note other than the bobbing of her head...(which is to mask these mini-seizures should they creep up on her while speaking).....
She is very worn out in this video and is evidenced by her look and her behavior.....notice also the pressed lips....that’s vulnerability and lack of confidence....which she certainly had as they asked questions.
The problem for her is the layers of lies, layers over layers over layers, for decades no less, that anything she speaks isn’t a matter of fact or truth for her.... she’s way passed the point of identifying truth. It simply doesn’t matter...only the narrative she’s told and believes she should deliver.
One cannot live the life of lies she has without it affecting the body, because the body never lies, so it will rebel against you.