What we hear when you say >it's not a pathology is that the medical establishment ought to respond to those who approach it in immense pain by saying, "this i

What we hear when you say >it's not a pathology is that the medical establishment ought to respond to those who approach it in immense pain by saying, "this is working as expected, go away." To use your analogy, if a patient presents with a problematic degree of weight loss, the appropriate response is not "yeah, that's what happens when you don't eat, bye." It's to figure out why they aren't eating, and how to get them to eat. Loss of appetite is a symptom of all sorts of pathologies, from an obsession with mass-media standards of beauty to all sorts of fun physical disorders, and a doctor would investigate these avenues and resolve whatever is responsible so that the patient starts eating again.