Hunger Cues

I remember in an outpatient program that I did years ago they always said "notice your hunger cues" and made a big deal out of how our bodies get confused by restricting, binging, and purging.  So hunger cues scare me.  I don't like to eat a meal and then still be hungry.  I caught myself yesterday and realized that I ate way too small of a lunch and had a snack.  But I struggle to tell myself that it is okay.  I know way too much about nutrition and calories and all of that.  But I have never dealt with acknowledging that it is okay for me to be nourished.  And being full is sooooo hard.  I know I have to retrain my body and this takes time.  But in the meantime, it takes a lot of energy to handle!