Mental pain can be described as ANGUISH and ANGST. ANGUISH is a 7 letter word meaning intense suffering, especially mental suffering, while ANGST is a 5 letter word meaning a feeling of deep anxiety or dread. Mental pain is an emotional distress that can be caused by a variety of factors, such as trauma, depression, or stress. It can manifest itself in physical symptoms, such as headaches, stomachaches, and fatigue. It can also lead to feelings of hopelessness, helplessness, and despair.