I am studying in high school. From a week I am experiencing lots of headache, fatigue and dizziness due to which I have started taking anacin (a medicine) daily and sometimes twice a day I am not able to concentrate and even not able to write my exam .i thought that maybe I could be hypoglycemic so I have also started eating a lot. As my exams are going on I am having lots of coffee and sometimes my meals are also skipped, my sleep cycle has changed do provide me the necessary information and treatment.