Strange Behaviour
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Weston S. Ferrer, MD (Psychiatry)
Weston Ferrer is a physician leader, psychiatrist, and clinical informaticist based in San Francisco. With nearly a decade of experience in academia and more recent immersion in industry, he has made significant contributions to the fields of digital health, health tech, and healthcare innovation. | As an Associate Professor at UCSF, Weston was involved in teaching, leadership, and clinical practice, focusing on the intersection of technology and mental health. He recently led mental health clinical for Verily (formerly Google Life Sciences), where he applied his expertise to develop innovative solutions for mental healthcare using the tools of AI/ML, digital therapeutics, clinical analytics, and more.. | Weston is known for his unique ability to innovate and support product development while bringing pragmatism to technology entrepreneurship. He is a strong advocate for patient-centered care and is committed to leveraging technology to improve the health and well-being of individuals and communities. |
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.
Content updated on Nov 7, 2023
Following the Medical Content Editorial Policy
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Try one of these related symptoms.
Unusual behavior
Weird behavior
Forgetfulness
Drowsy
Does not respond to instructions
Act weird
Response is slower than usual
Memory lapse
Doesn't remember his/her birthday
Acting strange
Doesn't remember his/her name
Altered level of consciousness
How Ubie Can Help You
With a free 3-min Strange Behaviour quiz, powered by Ubie's AI and doctors, find possible causes of your symptoms.
This questionnaire is customized to your situation and symptoms, including the following personal information:
Biological Sex - helps us provide relevant suggestions for male vs. female conditions.
Age - adjusts our guidance based on any age-related health factors.
History - considers past illnesses, surgeries, family history, and lifestyle choices.
Your symptoms
Our AI
Your report
Your personal report will tell you
✔ When to see a doctor
✔︎ What causes your symptoms
✔︎ Treatment information etc.
People with similar symptoms also use Ubie's symptom checker to find possible causes
- Behavioral abnormality
- Level of consciousness getting worse
- Memory breaks
- Strange movements
- Level of consciousness decreasing
- Unresponsive to verbal commands
- Behave abnormally
- Not able to follow instructions
- I'm a little drowsy than usual
- Unable to recall birthday
- Not listening to instructions
- Unable to recall name
- Weird movements
- Not able to follow commands
See full list
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizAbout the Symptom
Abnormal behavior refers to being aware or told that one has been acting strangely or differently from usual. Such behavior is often regarded as evidence of a mental or emotional disturbance, ranging from minor adjustment problems to severe mental disorder.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
- Strange behaviour
Possible Causes
Generally, Strange behaviour can be related to:
- Sydenham Chorea
Sydenham chorea is a rare neurological disorder characterized by sudden onset abnormal movements that occur after infection with group A streptococcus bacteria. Most people are affected during childhood. Movements are random, continuous, and involuntary, sometimes affecting the entire body. The disease is thought to occur because antibodies against group A streptococcus cross-react with nerve cells in the basal ganglia, a structure in the brain that fine-tunes voluntary movements.
- Attention Deficit Hyperactivity Disorder (ADHD)
Attention deficit hyperactivity disorder (ADHD) is a condition that is characterized by attention difficulty, hyperactivity, and inability to control one's behavior (impulsiveness). It often starts in childhood and can cause a child to struggle in school, at home, or in social relationships. It is more common in male children. The causes of ADHD remain unclear but risk factors include genetic factors, tobacco use during pregnancy, premature delivery, and low birth weight.
- Alzheimer's Disease
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.
- Urea Cycle Disorder
- Sleepwalking
- Hyperthyroidism
- Hydrocephalus
Related Serious Diseases
Sometimes, Strange behaviour may be related to these serious diseases:
- Wernicke Encephalopathy
Wernicke encephalopathy (WE) is an acute neurologic condition condition characterized by vision changes, ataxia (loss of coordination and balance), and confusion. It is caused by B1 or thiamine deficiency.
- Epilepsy
Acute Encephalopathy
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Have you noticed or been told that you are acting strangely or differently lately?
- Have others mentioned increased forgetfulness?
- Can the patient remember their name and birthday?
- Are you unable to execute simple commands such as 'squeeze my hand and then let it go'?
- Are you more tired than usual?
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizFind Similar Symptoms
Similar symptoms or complaints
Symptoms from similar body parts
Symptoms treated by the same specialty
References
American Psychological Association - Abnormal Behavior
https://dictionary.apa.org/abnormal-behavior
Reviewed By:
Weston S. Ferrer, MD (Psychiatry)
Weston Ferrer is a physician leader, psychiatrist, and clinical informaticist based in San Francisco. With nearly a decade of experience in academia and more recent immersion in industry, he has made significant contributions to the fields of digital health, health tech, and healthcare innovation. | As an Associate Professor at UCSF, Weston was involved in teaching, leadership, and clinical practice, focusing on the intersection of technology and mental health. He recently led mental health clinical for Verily (formerly Google Life Sciences), where he applied his expertise to develop innovative solutions for mental healthcare using the tools of AI/ML, digital therapeutics, clinical analytics, and more.. | Weston is known for his unique ability to innovate and support product development while bringing pragmatism to technology entrepreneurship. He is a strong advocate for patient-centered care and is committed to leveraging technology to improve the health and well-being of individuals and communities. |
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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My experience was great. I was worried, but the symptom checker helped me narrow down what it might be. I feel a little relieved compared to when I first started, and it gives me a starting point for what my symptoms could mean.
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The questions asked and possible causes seemed spot on, putting me at ease for a next-step solution.
(Sep 26, 2024)
Female, 40s
I was actually very impressed with the results it provided because, although I didn’t mention it during the questionnaire because I thought it was unrelated, it suggested I may have something I’ve actually been diagnosed with in the past.
(Sep 25, 2024)
Just 3 minutes.
Developed by doctors.
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Ubie’s symptom checker demonstrated a Top-10 hit accuracy of 71.6%, surpassing the performance of several leading symptom checkers in the market, which averaged around 60% accuracy in similar assessments.
Link to full study:
https://www.medrxiv.org/content/10.1101/2024.08.29.24312810v1