Aleksey Kravchenko says that he underwent "the most debilitating fatigue and hunger.

Chronic fatigue syndrome (CFS) is an illness characterized by prolonged, debilitating fatigue and multiple nonspecific symptoms such as headaches, recurrent sore throats, muscle pains and more.

Transfusions and better attention to nutrition can help with debilitating fatigue.

Chronic fatigue is an illness characterized by prolonged, debilitating fatigue and multiple nonspecific symptoms.

Chronic fatigue syndrome (CFS) is a complex illness involving debilitating fatigue along with other symptoms.

The debilitating fatigue is gone.

A young man was given medication to relieve depression that was causing debilitating fatigue.

A diagnosis of cancer can precipitate depression and anxiety, causing debilitating fatigue and a seeming inability to complete the tasks of daily life.

However, an individual with an invisible disability such as chronic or debilitating fatigue would not want to disclose their particular impairment.

Experts theorize that there are similarities between fibromyalgia and chronic fatigue syndrome, which is a condition primarily characterized by ongoing, debilitating fatigue.