Fatigue, Irritability and Insomnia (Medical Symptom)
Channel: Medical Symptom Information
Date: 2016-01-03

Possible causes of Fatigue, Irritability and Insomnia (Medical Symptom)

Fatigue is a subjective feeling of tiredness which is distinct from weakness, and has a gradual onset
Irritability is an excessive response to stimuli
Insomnia, or sleeplessness, is a sleep disorder in which there is an inability to fall asleep or to stay asleep as long as desired

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Music: 'Undaunted' Kevin Macleod CC-BY-3.0
Source/Images: "Fatigue" CC-BY-2.5 https://www.freebase.com/m/01j6t0
Source/Images: "Irritability" CC-BY-2.5 https://www.freebase.com/m/083h_x
Source/Images: "Insomnia" CC-BY-2.5 https://www.freebase.com/m/0ddwt