Do not do this. For all we know, Amber has nothing more than a hangover and she's milking it because she's got nothing else to go with. We didn't see her puke, we didn't see a temperature reading, we've got nothing at all to go on but her word, and as we all know: Amber lies. Amber also milks health issues when she runs out of Vlogmas content.
She usually gets something every winter, and that something ends up leading to the only substantial weight loss she'll have all year. In 2018 she has some stomach bug that let her get from 498 down to 469. I think this year she only got tonsilitis, though.