"She seemed to be on some cold medicine because she was wavering back and forth like someone new to public speaking."
No, no that you're missing the point! Those bodily movements are supposed to project "energy" and "natural vitality". They are the result of extensive, expensive coaching by the best image builders money can buy.
She's always trying to adapt someone else's mannerisms, because her own are so off-putting. For a while there she was Sharon Stone. In this video, she reminds me very much of the televangelist Joyce Meyer. I think she"s been casting about for someone charismatic to emulate, and Joyce Meyer has a very engaging style. Unfortunately, on Hillary it just looks strange and unnatural. The odd thing is, if Hillary's agenda were not so scary, her persona would be bearable.