Lack Confidence
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Reviewed By:

Yu Shirai

Yu Shirai, MD (Psychiatry)

Dr. Shirai works at the Yotsuya Yui Clinic for mental health treatment for English and Portuguese-speaking patients. He treats a wide range of patients from neurodevelopmental disorders to dementia in children and participates in knowledge sharing through the Diversity Clinic.

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Content updated on Jan 4, 2023

About the symptom

Loss of self-confidence is characterized by a lack of confidence, which can affects how people view themselves, including their self-belief and abilities.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Seizure attack

  • Fainting with loss of consciousness

  • Difficulty breathing / breathlessness

  • Suicidal thought

  • Altered mental status (delirium)

  • Change in personality

Possible causes

  • Sleep disorder

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

  • Alzheimer dementia (AD)

    Alzheimer's disease is the most common cause of dementia. The brain shrinks, affecting memory and behavior. Symptoms worsen over time and can interfere with daily life. Increasing age raises the risk for Alzheimer dementia.

  • Adjustment disorder

    A psychological disorder, often with low mood and anxiety. It is triggered by a sudden change in life circumstances, e.g. divorce or losing a job.

  • Depression
  • Dissociative disorder
  • Obsessive-compulsive disorder
  • Social anxiety disorder
  • Bipolar disorder
  • Depressive
  • Hyperventilation syndrome . panic disorder

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Do you have loss of self-confidence?

  • Do you feel fatigued?

  • Do you have difficulty sleeping (Insomnia)?

  • Do you have less or no appetite, therefore eat less food?

  • Have you ever seen, heard, or smelt something that did not actually exist?

Other Related Symptoms

Similar symptoms or complaints

Reviewed By:

Yu Shirai

Yu Shirai, MD (Psychiatry)

Dr. Shirai works at the Yotsuya Yui Clinic for mental health treatment for English and Portuguese-speaking patients. He treats a wide range of patients from neurodevelopmental disorders to dementia in children and participates in knowledge sharing through the Diversity Clinic.

From our team of 50+ doctors

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Just 3 minutes.
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Kameda Medical Center, Japan

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Yu Shirai, MD

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Yotsuya Yui Clinic, Japan

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