well the treatments are different for every single person so that's hard to tell :)
an important thing to do is be honest with your psychiatrist...
:)
are you wanting help or trying to avoid it ? i couldnt tell from your post
yes you can be anerexic but still close to normal body weight. yes your psychiatrist can diagnosis you as having anerexia depending on what you say during yoiur sessions depending on how long you think youve been experiencing anerexia symptoms you can do out patient therapy or in patient treatment .