Bitterness

Resentment remains internally active, generating stress and ongoing emotional pain. Holding onto anger, the desire for revenge, or betrayal continues to injure the person carrying those feelings. Chronic stress from holding onto betrayal can disrupt sleep, eating, and overall well-being. Unresolved anger and the desire for revenge can adversely affect physical health. Bitterness over past mistreatment can manifest as physical illness. As an example of stress caused by unresolved betrayal, prolonged emotional stress is described as contributing to a menstrual period lasting two months.