Hi sugar_lipswales, sorry to hear you're having such a tough time of it. I don't have any personal experience of what you're going through at the moment, but have been a friendly ear when some of my friends have been suffering badly with depression. I don't know if this will be of any help, but instead of thinking about your appointment next week, and how bad the last couple of weeks have been, maybe you could just plan what to eat tomorrow, and take it one day at a time. The eating isn't the most important thing in the world, but maybe it is something you can get back in control of. Wish I could do more to help.
Penny x