I am experiencing an absent mindedness from 3-4 continues days. In this my condition, I am like an inactive species, though I do everything I am supposed to do but then too I do not know what I am doing and why everything around me seems to me as a day dream. I do not even have a single thought in my mind. When ever I try to study or do something else valuable my head starts spinning. I am taking a regular sleep. This condition occurred few times before also but not as much as it is now. What shall I do?