I'm hungry but dont feel like eating

It maybe someone else why would I ask a question that I have already asked before

i never crave breakfast or lunch.. sometimes not even dinner.. i feel like throughout my normal day like getting ready for class and during, i never get hungry.. but the only times i feel hungry is when i'm at work.. i work at a restaurant so maybe its because i'm serving people food and constantly asking them if their food tastes good and how great their meal is while they eat it and i cant eat any of it.. i just throw away half-eaten plates all the time and see nice juicy fresh food.. but when i get home, i rarely have any desire to eat food.. im just tired and grossed out by looking at food all afternoon.. i hear it's good to fast, but sometimes when i know i havent been eating consistently, i get more tired throughout the day and that's because of low calorie intake.. /: even though i dont feel hungry.

Are you depressed? My eating habits, metabolism are turning to shit lately.