I don't know if you're replying to me, but i don't recall addressing mental illness or the rest of the conditions you list.
Eating disorder is usually a choice, the other conditions you are listing are much less in control or often out of control of a person.
Eating disorders are mental disorders in the DSM-V - which is the bible in the United States on mental health. Y An eating disorder is all about control. It is inappropriate control of what one eats, and is related to a whole panoply of situations and psychological issues. They can lead to death. One does not choose to have an eating disorder any more than other addictions.
Here's a link for more information.