| According to the 1994 Fukuda
| |
| | temperature. Many CFS patients frequently
|
| definition[2] there are eight main
| |
| | run a low fever, or report fever-like
|
| categories of symptoms in CFS:
| |
| | symptoms (sweating, feeling too hot or
|
| Fatigue: People with CFS experience
| |
| | cold, etc.) without measurable fever
|
| profound, overwhelming exhaustion, both
| |
| | temperature.
|
| mental and physical, which is worsened by
| |
| | Sleep problems: "Unrefreshing sleep" and
|
| exertion, and is not relieved (or not
| |
| | rest is a hallmark of CFS, and insomnia
|
| completely relieved) by rest. To receive
| |
| | is also common. Maintaining a sleep
|
| a diagnosis of CFS, this fatigue state
| |
| | schedule is extremely difficult for many
|
| must last for six months.
| |
| | patients. Vivid, "feverish" dreams are a
|
| Pain: Pain in CFS may include muscle
| |
| | symptom in many people with CFS,
|
| pain, joint pain (without joint swelling
| |
| | exacerbating disturbed sleep patterns.
|
| or redness, and may be transitory),
| |
| | Patients report that exercise, unlike in
|
| headaches (particularly of a new type,
| |
| | healthy persons, worsens the insomnia and
|
| severity, or duration), lymph node pain,
| |
| | unrefreshing sleep symptoms alike.
|
| sore throats, and abdominal pain (often
| |
| | Psychological/Psychiatric symptoms:
|
| as a symptom of irritable bowel
| |
| | emotional lability, anxiety, depression,
|
| syndrome). Patients also report; bone,
| |
| | irritability, and sometimes a curious
|
| eye and testicular pain, neuralgia and
| |
| | emotional "flattening" (most likely due
|
| painful skin sensitivity. Chest pain has
| |
| | to exhaustion), may manifest in CFS
|
| been attributed variously to
| |
| | patients. Many of these symptoms can be
|
| microvascular disease or cardiomyopathy
| |
| | directly caused by the CFS mechanism or,
|
| by researchers, and many patients also
| |
| | in some cases, may be secondary symptoms
|
| report painful tachycardia.
| |
| | created by the syndrome, as many chronic
|
| Cognitive problems: people with CFS may
| |
| | pain or illness patients also show
|
| experience forgetfulness, confusion,
| |
| | similar psychiatric issues. CFS patients
|
| difficulty thinking, concentration
| |
| | with pre-existing psychiatric symptoms
|
| difficulties, and "mental fatigue" or
| |
| | may report that these worsen with the
|
| "brain fog". Additional signs may be
| |
| | onset of CFS. Treatment for psychiatric
|
| experienced; in the 2003 Canadian
| |
| | symptoms alone does not relieve the
|
| Definition these include aphasia,
| |
| | physical symptoms of CFS, indicating that
|
| agnosia, and loss of cognitive body
| |
| | the disease is not psychological in
|
| map[7][8].
| |
| | nature.
|
| Hypersensitivity: people with CFS are
| |
| | Disturbances in the autonomic nervous
|
| often sensitive to light, sound, and
| |
| | system and hormones:
|
| multiple chemicals and foods. Many CFS
| |
| | People with CFS often have abnormalities
|
| patients report an increase in
| |
| | in the autonomic nervous system such as
|
| allergic-type sensitivity to foods,
| |
| | low blood volume, orthostatic
|
| scents, and chemicals, and many also
| |
| | intolerance, dizziness and
|
| report a sensitivity to medications,
| |
| | light-headedness, especially when
|
| which can complicate treatment. Patients
| |
| | standing up quickly.
|
| with pre-existing allergies, asthma, and
| |
| | Hormonal abnormalities may include
|
| similar conditions often report a
| |
| | abnormal vasopressin metabolism and a
|
| worsening of symptoms. Sensory overload
| |
| | blunted ACTH response, leading to
|
| is commonly reported by patients, leading
| |
| | hypothyroidism and/or low cortisol and
|
| to increased fatigue and even migraine or
| |
| | reduced ability to respond to
|
| seizures.
| |
| | physiological and emotional stress.
|
| Poor temperature control: people with CFS
| |
| | Patients sometimes show abnormally low
|
| often report either feeling too hot or
| |
| | levels of testosterone, growth hormone
|
| too cold, possibly due to involvement of
| |
| | and other important hormones.
|
| the hypothalamus, which regulates body
| |
| |
|
