I think that Xmas video was from Gina's house - There was a bleached blond haired lady holding the baby (you could see her in the beginning of the video). Her hair was styled like Gina's. (now if this so - then surely they had to know she was on something)
You're right. Gina can't be so dumb that she thinks Anna was acting that way because of her 'siezure medication'?