I depend on my sound machine. Electricity went out this morning so I didn't get the good nights rest I usually do. I tried to go back to sleep when the electricity came back on but no go. So I am tired all day long. Sometimes I have a problem trying to determine if what I have is just tiredness or good ol' fatigue. I don't know if it is in my mind or not but I can work through tiredness but not fatigue. Maybe I am giving myself permission to give into the fatigue but not being tired.