No Appetite??!!??

So I was sick last week (flu) and while all those symptoms are gone, my appetite hasn't come back and it's been a week and a bit since I was sick. I used to have anorexia (6 years ago) and I have 2 anxiety disorders and depression and have no idea why my appetite has vanished! I can barely keep down more than one small meal a day and it's really worrying me and my boyfriend, anyone have any idea what might be wrong or what I can do?! And before everyone jumps on going to the doctors, I have an appointment but the earliest they can get me in is the end of the month so I'm looking for things to help while I wait.