Almost Passing Out
Free Symptom Checker
with Physician-supervised AI
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
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.
Content updated on Feb 26, 2024
Following the Medical Content Editorial Policy
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Try one of these related symptoms.
Feeling of lightheadedness
Lightheaded and dazed if I stand for too long
Feeling faint from the heat
Exercise makes me lightheaded and feel like fainting
Feeling like blacking / passing out from needles or injections
A severe lightheaded feeling
Vision starts to black out and I feel like fainting if I sit/stand for too long
Near-fainting after exercise
Almost fainted in a warm environment
Too sensitive to the sight of blood
Feeling faint after blood was drawn
Might blackout
How Ubie Can Help You
With a free 3-min Almost Passing Out 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
- Running or jogging makes my head spin and feel like passing out
- Could not tolerate the sauna / hot spring and nearly fainted
- Feels like I am passing out
- Feeling like about to black out / pass out from standing too long
- Feeling like about to black out / pass out after running
- Almost fainted from injections or blood drawing
- Almost fainted after sitting in the same position for too long
- Seeing blood being drawn makes me feel faint
- Close to passing out in a hot place
- About to pass out
- Feeling faint after sitting or standing for a long time
- Nearly blacked out after an exercise session
- Vaccination injection made me nearly faint
- Nearly passed out from the heat
See full list
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizAbout the Symptom
It's the sensation of feeling faint without actually losing consciousness.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
- Feeling faint
Possible Causes
Generally, Almost passing out can be related to:
- Hypertrophic Cardiomyopathy
Hypertrophic cardiomyopathy is a condition where the heart muscle becomes thick. It is often caused by gene mutations in the heart muscle. The thickened heart muscle can become stiff, reducing the heart's ability to pump blood adequately.
- Depression
Depression is a mental illness that leads to low mood, reduced energy levels, and changes in sleep. This affects everyday activities like attending school and work. As the condition worsens, patients might have suicidal thoughts. Although stress and past trauma can cause depression, it can take time to identify and address causes, and genetic factors may also be at play.
- 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.
- Multiple Myeloma (MM)
- Benign Arrhythmias (Palpitations)
- Migraine
- Peri-/Post-Menopausal Symptoms
Related Serious Diseases
Sometimes, Almost passing out may be related to these serious diseases:
- Epilepsy
Epilepsy is a neurological disorder where brain activity becomes abnormal, causing seizures of varying durations and severities. It can affect people of any age and may be caused by genetic disorders or brain injuries, such as stroke.
- Heatstroke
- Cerebral Infarction
Doctor's Diagnostic Questions
Your doctor may ask these questions to check for this symptom:
- Have you felt like fainting without actually losing consciousness?
- Have you ever felt faint (close to passing out) in a hot environment?
- Have you ever felt faint during an injection?
- Have you ever felt faint (close to passing out) after exercise?
- Have you ever felt faint (close to passing out) when sitting or standing for a long time?
Just 3 minutes.
Developed by doctors.
Try Free Symptom QuizFind Similar Symptoms
Similar symptoms or complaints
Symptoms from similar body parts
Reviewed By:
Maxwell J. Nanes, DO (Emergency Medicine)
Dr Nanes received a doctorate from the Chicago College of Osteopathic Medicine and went on to complete a residency in emergency medicine at the Medical College of Wisconsin. There he trained at Froedtert Hospital and Children's Hospital of Wisconsin in the practice of adult and pediatric emergency medicine. He was a chief resident and received numerous awards for teaching excellence during his time there. | | After residency he took a job at a community hospital where he and his colleagues worked through the toughest days of the COVID-19 pandemic. |
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.
What People Say about Ubie?
Male, 30s
I got more answers in one minute through your site than I did in three hours with Google.
(Sep 29, 2024)
Male, 20s
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.
(Sep 27, 2024)
Male, 50s
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.
Try Free Symptom QuizUbie is supervised by 50+ medical experts worldwide
Our symptom checker AI is continuously refined with input from experienced physicians, empowering them to make more accurate diagnoses.
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Which is the best Symptom Checker?
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