Strange Behaviour

Check your symptoms and
find possible causes with AI for free

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

Please choose the symptom you are most concerned about.

It will help us optimise further questions for you.

By starting the symptom checker, you agree to the Privacy Policy and Terms of Use

Find another symptom

How Ubie can help you

With an easy 3-min questionnaire, Ubie's AI-powered system will generate a free report on possible causes.

Your symptoms

Input your symptoms

Our AI

Our AI checks your symptoms

Your report

You get your personalized report

Personalized Report

✔︎  When to see a doctor

✔︎  What causes your symptoms

✔︎  Treatment information etc.

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

  • Behavioral abnormality

  • Level of consciousness getting worse

  • Doesn't remember his/her birthday

  • Strange movements

  • Level of consciousness decreasing

  • Unresponsive to verbal commands

  • Doesn't remember his/her name

Just 3 minutes.
Developed by doctors.

Learn More

Content updated on Jan 4, 2023

About the symptom

Abnormal behavior refers to being aware or told that one has been acting strangely or differently from usual.

When to see a doctor

Seek professional care if you experience any of the following symptoms

  • Strange behaviour

Possible causes

  • Schizophrenia

    A psychological disorder where there is altered brain function. The exact cause is unknown, but a combination of genetic, psychological and environmental factors are likely responsible.

  • 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 increases the risk for Alzheimer dementia.

  • sleepwalking

    Sleepwalking is when someone walks or carries out complex activities while not fully awake. It usually happens during a period of deep sleep.

  • Hypothyroidism
  • Hyperactivity disorder
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Dissociative disorder

Related serious diseases

  • Epilepsy

    Epilepsy is a neurological disorder where brain activity becomes abnormal. This can cause seizures of varying lengths of time and severity. Epilepsy can affect people of any age and may occur due to genetic disorders or brain injury such as stroke.

  • Hyponatremia
  • Dehydration

Questions your doctor may ask about this symptom

Your doctor may ask these questions to check for this symptom

  • Have you noticed or been told that you have been acting strangely, differently from usual?

  • Have you currently regained consciousness after temporarily losing consciousness?

  • Do you have headaches or does your head feel heavy?

  • Do you have a fever?

  • Do you feel any weakness in your arms or legs?

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

Just 3 minutes.
Developed by doctors.

Ubie is supervised by 50+ medical experts worldwide

Shohei Harase

Shohei Harase, MD

Neurology

Kameda Medical Center, Japan

Yu Shirai

Yu Shirai, MD

Psychiatry

Yotsuya Yui Clinic, Japan

Yoshinori Abe

Yoshinori Abe, MD

Internal medicine

Co-founder of Ubie, Inc.

Rohini R

Rohini R, MD

Ear, nose, throat (ENT)

Bayshore Health Centre, India

Seiji Kanazawa

Seiji Kanazawa, MD, PHD

Obstetrics and gynecology (OBGYN)

National Center for Child Health and Development, Japan

View our medical experts