I am constantly facing lethary, dizziness and also face lack mental conciousness due to the drowsiness . I also had consulted the doctor regarding an skin problem called urticaria , i have been prescribed citrizine . before the recommendation of medicine i was already facing dizziness and so,,,what i want to know is that - is the problem of dizziness is related to hives or there could be another problem also .... i have my exams in 15 days or so .. n and i am not able to study ,,, please help