Thank you so much for the welcome, @myrtleWilson .
My DD rang me from university the night before the last and told me that she is having quite intense problems with eating. It seems to have developed very quickly - she has always had what I would have thought a very healthy approach to food, but since the end of September this has developed. She is managing to eat dinner every day (even though she's eating in the bathroom so that no one sees) but she's absolutely compulsively thinking about food and not eating all day and night.
What makes it all the more terrifying is that she has a very serious, complex heart condition. I've rung the cardiac liaison nurse to let them and her consultant know, but I'm now focusing on getting her home on Tuesday and getting her to the GP.
I'm just worried, obviously, and even though my older daughter has been through it, she didn't actually let us know until she was well on the road to recovery, so I do feel out of my depth and very ignorant about everything.