"I often feel very tired starting from 3pm in the afternoon?"

It is important to pay attention to changes in energy levels and other symptoms that may indicate an underlying health issue. It could be beneficial to consult with a healthcare provider for a thorough evaluation to determine the cause of your fatigue. Consider scheduling an appointment with a doctor for further investigation and guidance on how to address your concerns. Monitoring your diet, sleep patterns, and overall lifestyle choices may also help in managing your energy levels throughout the day. Take care of your health and well-being.