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Doctor insights on: Causes Of Chronic Fatigue Syndrome

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What is the cause of chronic fatigue syndrome?

What is the cause of chronic fatigue syndrome?

Multifactorial: Chronic fatigue syndrome is a multifactorial consequence of hormonal, immune system and nervous system dysfunction resulting from genetic predispositions and dietary and environmental insults. These factors impair the patient's ability to produce energy and they end up chronically fatigued. Poor diet, suboptimal sleep, food and other allergies contribute. ...Read more

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Dr. John Leander Po
297 doctors shared insights

Chronic Fatigue Syndrome (Definition)

Chronic fatigue syndrome (CFS) is characterized by severe fatigue lasting longer than six months for which no underlying cause has been found. Chronic fatigue gets worse with strenuous physical or mental activity. Rest does not seem to ...Read more


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What can high ACTH levels at 2:30pm indicate? I'm trying to figure out what is causing my chronic fatigue syndrome.

What can high ACTH levels at 2:30pm indicate? I'm trying to figure out what is causing my chronic fatigue syndrome.

Deficiency: The high acth levels could indicate sluggish function of your adrenal glands as seen in Addison's disease which can cause chronic fatigue as well as electrolyte abnormalities. However an endocrinologist is best qualified to evaluate andtreat you and investigate the cause of your elevated acth level. ...Read more

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Do we know what causes chronic fatigue syndrome?

Do we know what causes chronic fatigue syndrome?

Chronic fatigue: Scientists don't know exactly what causes chronic fatigue syndrome. It may be a combination of factors that affect people who were born with a predisposition for the disorder. Some of the factors that have been studied include: viral infections, immune system problems and hormonal imbalances. ...Read more

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What causes fibromyalgia or chronic fatigue syndrome?

What causes fibromyalgia or chronic fatigue syndrome?

No one thing: Hi. We do not know what causes either condition, so right now, your guess is as good as mine (or anyone else's). My belief is it's a constellation of causes, not any one thing. ...Read more

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What causes past mono/chronic fatigue syndrome?

What causes past mono/chronic fatigue syndrome?

Chronic Fatigue: Given that extensive labs, imaging, and all medical causes have been ruled out, you may want to try stimulants if you dont have a history of addictions. I have seen Provigil work well but again this would off label use, consult an expert. ...Read more

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Feeling fatigue since a week after tetanus shot. Can tetanus shot cause chronic fatigue syndrome?

Feeling fatigue since a week after tetanus shot. Can tetanus shot cause chronic fatigue syndrome?

Not usually: I have never heard of a tetanus shot causing chronic fatigue syndrome. It is much more likely to be related to your sleeping and eating patterns, if/what drugs you are taking, stress levels, etc. Medical causes might include thyroid imbalances, parathyroid problems, even depression. If the fatigue persists, see a primary care doctor. Good luck! ...Read more

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Is there any pathology to what causes chronic fatigue syndrome if standard blood test show normal? Has anyone had any positive clinical experience?

Chronic Fatigue: Syndrome is a collectioon of signs & symptoms that can be caused by a number of different issues, such as: adrenal/thryoid imbalances, infections with viruses, lyme, mycoplasma and others, and several more. The DX of chronic fatigue syndrome is usually made after ruling out all the other possibilities. ...Read more

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Can herpes simplex type two oral cause chronic fatigue syndrome or daily fatigue?

No Herpes Simplex: is divided into two types: HSV type 1 and HSV type 2. Both of these conditions can affect your mouth or your genitals and can be spread via oral sex, but not cause chronic fatigue syndrome. There no cure for HSV infection and often stress is an aggravating factor. Cold sores generally clear up without treatment within 10-14 days. See your PCP for physical. ...Read more

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What causes your fibromyalgia or chronic fatigue syndrome? Are the two very related or not?

What causes your fibromyalgia or chronic fatigue syndrome?  Are the two very related or not?

Separate: ? re: similarity chronic fatigue syndrome (CFS) & fibromyalgia (FM). CFS is attendant with several different diseases & disorders. FM causes CFS; a sentinel symptom. Chronic fatigue is common consequence of common occurrence of non-restorative sleep, which might reflect chronic pain, chronic psychological stressors, noisy environments etc. Gov. agencies on quest for THE elusive virus; good luck! ...Read more

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Is it possible that a severe vitamin d deficiency, along with a slight calcium defiency could cause severe fatigue? (dx chronic fatigue syndrome)

Is it possible that a severe vitamin d deficiency, along with a slight calcium defiency could cause severe fatigue? (dx chronic fatigue syndrome)

Possible/unlikely: It is possible that very severe d deficiency can lead to weakness due to either deficiency in calcium or phosphorous -- but i doubt it would be sufficiently severe to be confused with chronic fatigue syndrome. D levels are easy to check and remedy w/replacement. ...Read more

Dr. Betty Keller
528 doctors shared insights

Chronic Fatigue (Definition)

Chronic fatigue is a persistent feeling of tiredness and being "worn down" over ...Read more


Dr. Michael Rothman
1,268 doctors shared insights

Lethargy (Definition)

Lack of energy, ...Read more