Why me?

Chapter 1

The bell rings.
" Hey Stella! Wait up!" Cameron says. "Ugh, what do you want?" I say back. I'm so hungry I don't have time to talk. I keep walking despite his pleads for me to slow down. I walk into the lunch room and immediately take my seat. I open my lunch box and start to open my sandwich. I see Aubrey walking over. I brace myself for impact. " Hey Stella. What do you have today?" Says Aubrey. " Oh, a sandwich? I thought I heard your gaining weight! Maybe you should try some air."
I look down at my stomach and groan. I don't want to deal with this today. I pack my lunch back up and force myself not to eat. She walks away giggling. Cameron looks at me. " Are you seriously going to stop eating just because she tells you to?" I ignore him. I get up and walk to the bathroom. I make sure no one is in there before I go into a stall. I force myself to throw up the food I had eaten. I've never done this before. I start to cry. " Why am I like this?"