Appetite is not linked to hunger since appetite is the activity and drive in order to eat whereas hunger is the physical and mental state in which a person needs to eat.
Also appetite is linked to many unhealthy behaviors that can result to other symptoms of eating disorders which causes deletrious effects on one's mental and biological state.
The first step will be the physician's diagnostic statement, which is an evaluation listing the patient's condition and medical term.
Spend some time to yourself, enjoy your favorite tv show while eating your favorite food, hang out with people who make you feel good about yourself, get a nice massage ever now and then
Depression and anxiety. or at least thats what it is for me.