To feel anxious means to experience feelings of worry, nervousness or unease about something with an uncertain outcome. It is a natural human emotion that can be triggered by various factors such as stress, fear, or anticipation of danger. People may feel anxious when faced with a difficult decision, an important event, or an unfamiliar situation. Anxiety can manifest in both physical and psychological symptoms, including restlessness, difficulty concentrating, sleep problems, irritability, and feelings of dread. While mild anxiety is common and can be managed through relaxation techniques or support from friends and family, more severe cases may require professional help such as therapy or medication.