Hello Friend, Good that your seeking to help. Reason for headaches are many like either from body or mind. Ex digestion, constipation, blood pressure, sinus etc cause headaches from body. Stress, anxiety or depression causes headaches from mind. So it's important to isolated it. In your case, it be due to exam pressure, eating, lifestyle, usage of mobile, Internet etc. Just organize your day and control your lifestyle. If you still need assistance, the take a counseling support.