Because breakfast, lunch, and dinner were times of the day ingrained for me, I felt like always had to eat at certain times of the day. In my head, it would be preposterous to eat lunch at 10:30am or dinner at 4pm.
Prior to discovering intuitive eating, I would feel obligated to eat food at social gatherings. If I were offered food, I felt refusing would be rude, so I would accept the food and eat it despite not being hungry. Read about this in the article “Back Off Man, I’m an Intuitive Eater!“