Emotional stress is a term used to describe the physical and mental strain caused by difficult situations. TENSION is a common symptom of emotional stress, which is defined as a feeling of strain or pressure due to a difficult situation. It can be caused by a variety of factors, such as work-related stress, financial problems, or relationship issues. TENSION can manifest itself in physical symptoms, such as headaches, muscle TENSION, and fatigue. It can also lead to psychological symptoms, such as anxiety, depression, and irritability.