To my shame, I got caught out and hadn't prepared a post, but I hope people will go over on this link and read Bluebirdsunshine's brilliant one.
bluebirdsunshine.co.uk/2013/05/15/hg-awareness-day/#comment-2372. Unfortunately, there is a long way to go with understanding of this terrible condition and that it is potentially life threatening when untreated. Some of the women coming on to the Hyperemesis Support thread have still been treated dismissively by work colleagues and sometimes by medical staff.
Thanks, everyone, for listening.