My coworkers got a promotion and a raise and I didn't. My brother said something so hurtful. My best friend forgot to call me back.
These kind of things happen constantly to all of us. When we think about them and focus on them they eat us from the inside. We become more and more angry. Its easy for me to burn with envy. The hard thing for me is to let them go. What makes you sick isn't what you are eating, but what's eating you.