Back to not eating!

Girls I need help, I am still battling anorexia and there are these point where I just feel like I don't want to eat and I don't have to eat. I use to do this all the time and my weight dropped drastically and I feel like it is dropping again. I jut don't know what to do cause I feel hungry but every time I get food I eat one bite and then I throw it away! Can anyone help me out? And please no negative comments or anything