Hi , My name is chaithanya currently I'm working in software Feild. I don't have work pressures and family pressures. I'm getting regular headache while sleeping also I'm experiencing seviour headache from past 2years. I took medicine name called vasograin. That madicine gives me instant relief but Ir didn't cure well. Mostly I'm getting right and left sides of head sometimes middle of the head is also paining like hell. Recently I'm experiencing dizzy feeling nd sudden darkness while walking..and sometimes I fell down. Please tell me the reason why this is happening and show me the way to get out of this seviour headache.