Pregnancy One disorder that causes extreme fatigue ischronic fatigue syndrome(CFS). This fatigue is not the kind of tired feeling that goes away after you rest. Instead, it lasts a long time and limits your ability to do ordinary daily activities. ...
(Medical Xpress) -- Most pregnant women complain of being tired. Some of them however, could be suffering more than normal fatigue associated with their pregnancy; they may have developed obstructive sleep apnea (OSA), a periodic cessation of breathing d