I am a control room operator. I work alone. I work 12 hour rotating shifts. Usually 7 nights in a row with 2 days off then 7 days in a row with 2 days off. I normally get around 7 hours of sleep a night. Throughout the day I go through debilitating bouts of sleepiness. This makes it hard to drive, work or focus on tasks. Additionally, I get frequent hot flashes and dizzy spells.I also feel depressed sometimes. I have no known health issues. I have been to my doctor and all they did was prescribe Meclizine for dizziness and antibiotics. My BP was 140/90 something. Does anyone have any ideas?