I tend to worry about food to a point, but not to the point i do not want to eat. I do, however, fear of getting sick/too full when I am out or will be going out that I stopped eating or ate very small amounts during a meal (1oz). This past weekend I fainted twice! This was after not eating more than 300 calories for about 5 days. This was the first time I have ever fainted in my life, and I never want it to happen again! I was lucky to have been with someone who was able to catch me. I'm lucky that I wasnt alone and hit my head. Our bodies, whether we feel hungry or not, cannot survive on too little food.
Of course, just saying you need to eat to live (and lose weight) is easier said than done. I just do not want to see anyone go through the same experience I have had from not eating enough.