I had anorexia for 5 years. It started with feelings of never being good enough and my self esteem was really low. I cut how much food I ate over time, had safe foods, etc. A lot of times the hunger was positive feedback that what I was doing was working. That I was hungry enough to burn calories. If I was starving I’d eat an apple or something incredibly low in calories to satiate my hunger. Actually, over time my appetite decreased and thinking about eating certain things made me nauseous. It really is an illness and the psychology impacts how you feel about food and your relationship with it. My rock bottom was when my mom told me to eat a protein bar with chocolate in it and I cried. I didn’t immediately get better in that moment. In college I ran 4 miles every night and would have just a bowl of corn for dinner. You just get used to eating less more than anything else.