 [ Symptoms ] why do i feel lightheaded fatigued and sweat during sleeping no fever  i am an almost 37 yr old female with a lot of stress right now dr put me on effexor and i started not being able to sleep having bad headaches feeling lightheaded and constipated i took it for 2 weeks and he told me to stop when i called him he called me in something else but i am afraid to get it i have been on paxil prozac and celexa and never felt this horrible i have not taken anything in almost a week but feel lightheaded many times thoughout the day any ideas what could be wrong [ Disease ] the risk is determined by a person is behavior not hisher gender men who have sex with men are 10 to 15 times more likely than the general population to be infected with hepatitis b viral hepatitis is also more common among people who come from parts of the world where the disease is endemic including asia sub saharan africa eastern europe and the middle east infection is also more common among current or former users of inhaled or injected drugs people with tattoos or piercings are also more likely to be infected because the needles used to create these body decorations sometimes harbor the hepatitis virus of course just because someone belongs to one of these risk groups does not mean he or she is infected and just because someone does not belong to a risk group does not mean he or she is free of infection