I think it's strange

I think it's strange because i'm always hungry when i stay at home but when i'm outside specially at work, i don't feel hungry. I think I gained weight again during my 2 days vacation. I don't want to gain weight although some say that i'm thin but when I look at my face on the mirror, I can see this big face in front of me and I don't like it. So when I say about that to others, most of them answered if I am fat then what are they? Ooppss...i feel so sorry for them. It seems like i'm also saying that they are gorilla because they are fatter than me. hehehe...