Anorexia from fear of food

I get super sick from eating that now it takes a whole hour to get a small bit of food down and that's all I can take.

I know it's not about trying to lose weight but I just want to be clean so nothing hurts me however I have lost a significant amount of weight in a few days.

I don't want to be transferred to psych when I see my specialist but I would also rather not eat. Is this the same?

Clean in what way, if I can ask?