Lethargic

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Reviewed By:

Unnati Patel

Unnati Patel, MD, MSc (GP / Family doctor)

Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.

Yoshinori Abe

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

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People with these symptoms also use Ubie's symptom checker to find possible causes

  • Feel uncomfortable

  • Muscles become tired when I do repetitive things like brushing teeth or combing hair

  • Suddenly feeling tired or fatigued in the middle of the day, then it gets better

  • Feeling more tired/fatigued in the morning than at other times of the day

  • Feeling very tired in the morning even though I slept well

  • Muscles don't work well in the evening

  • A tendency to lose strength

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Content updated on Jan 4, 2023

About the symptom

It describes an overall feeling of tiredness or lack of energy. People who have fatigue feel so drained that their exhaustion interrupts their daily life.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Difficulty breathing / breathlessness

  • Recent weight loss

  • Unexplained weight loss of 5% or more in 1 month

  • Jaundice

  • Seizure attack

  • Melena (black stools)

  • Peripheral cyanosis

Possible causes

  • Diabetes mellitus (DM)

    A disease where blood sugar levels are abnormally high, due to problems with insulin production or resistance. There are often no symptoms until the condition has worsened, hence regular screening is important.

  • Cirrhosis of the liver

    A condition where normal liver is permanently damaged and replaced with scar issue. There are many different causes including infections, alcohol abuse and diabetes.

  • Sleep disorder

    Sleep disorders are conditions that affect the quality, timing or duration of your sleep, impacting your ability to function when you are awake. There are many types of sleep disorders, they include disturbances in the quality or quantity of sleep or excessive daytime sleepiness, abnormal behaviors that occur during sleep, sleep disorder related to a mental disorder and many more.

  • Leg cramps
  • Common cold (upper respiratory tract infection)
  • Diabetic neuropathy

Related serious diseases

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you feel fatigued?

  • Do you get tired easily?

  • Do your symptoms of feeling tired and unwell get better or worse throughout the day?

  • Do you feel more fatigued in the morning?

  • Do you feel more fatigued and unable to move your muscles in the evenings compared to the mornings?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Unnati Patel

Unnati Patel, MD, MSc (GP / Family doctor)

Dr Patel graduated from the Zhejiang University School of Medicine. She worked in clinical research at the University of Illinois in Chicago and University of Nevada in Las Vegas focused on culturally adapted health interventions for preventive medicine in the community setting. Received her Master's of Science in Global Health (concentration in Health Policy) from Georgetown University, during which she worked with the WHO in Sierra Leone and Save the Children in Washington, D.C. Unnati went on to complete her family medicine residency in Chicago, Illinois at Norwegian American Hospital. | | She is currently working as a primary care physician in the city of Chicago and completing her Master's of Business Administration at the Northwestern University Kellogg School of Management and Fellowship in Leadership in Value-Based Care.

Yoshinori Abe

Yoshinori Abe, MD (Internal medicine)

Dr. Abe graduated from The University of Tokyo School of Medicine in 2015. He completed his residency at the Tokyo Metropolitan Health and Longevity Medical Center. He co-founded Ubie, Inc. in May 2017, where he currently serves as CEO & product owner at Ubie. Since December 2019, he has been a member of the Special Committee for Activation of Research in Emergency AI of the Japanese Association for Acute Medicine. | | Dr. Abe has been elected in the 2020 Forbes 30 Under 30 Asia Healthcare & Science category.

From our team of 50+ doctors

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

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