The term 'overwhelming fear and anxiety' can be summarized as PANIC, which is a five-letter word. PANIC is an intense feeling of fear or anxiety that can cause physical symptoms such as a racing heart, sweating, trembling, and difficulty breathing. It is often accompanied by a sense of impending doom or dread. PANIC can be triggered by a traumatic event or a stressful situation, and it can also be caused by a medical condition.