Hello! Please don?t worry. Shivering or trembling can happen due to cold weather, stress, anxiety, fatigue, low blood sugar, fever, or vitamin deficiency. In many cases, it is temporary and manageable. Try to keep yourself warm, drink enough water, eat a light healthy snack, and get proper rest. Avoid taking random medicines without medical advice, as the exact cause may differ from person to person. If the shivering continues, becomes severe, or is associated with fever, weakness, or dizziness, consult a general physician for proper evaluation and treatment.