This girl thinks she's being funny/charming with her voices and her quirky animated mannerisms. She fancies herself a stand-up comedian of sorts. Some dude probably told her she was funny once to get in her pants and now she thinks she's Amy Schumer (I know Amy Schumer stinks, I literally couldn't think of anyone else). I really hope I'm right and she's playing it up for the camera on this. To treat your sick kid as an inconvenience is pretty shitty.