Feeling faint
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People with these 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 in a warm environment
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Content updated on May 23, 2022
Description
Presyncope is the sensation of fainting. This results in a feeling of dizziness and the fear of passing out without really losing consciousness.
When to See a Doctor
Seek professional care if you experience any of the following symptoms
Feeling faint
Possible Causes
- Benign arrhythmias such as extrasystoles
Arrhythmias are problems with the rate or rhythm of your heartbeat, where it might beat too slowly, too fast or with an irregular pattern. Benign arrhythmias are heartbeat irregularities which do not cause any symptoms. Causes include certain medications, caffeine, nicotine, alcohol, cocaine, inhaled aerosols, diet pills, stress, etc.
- Hypertrophic cardiomyopathy
Hypertrophic cardiomyopathy is a condition in which the heart muscle becomes thick. It is most often caused by genes mutations in the heart muscle. These thickened heart muscles can become stiff, reducing the heart's ability to pump blood adequately.
- Multiple myeloma (MM)
This is a cancer of a type of white blood cell in the blood, called a plasma cell. Cancerous cells multiply and "crowd out" other healthy, normal cells. Risk factors include positive family history, older age and male sex.
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.
- Bell's palsy
Questions your doctor may ask about this symptom
Your doctor may ask these questions to check for this symptom
Did you ever feel like you were going to faint?
Do you have a fever?
Do you have headaches or does your head feel heavy?
Do you have nausea or vomiting?
Have you ever felt dizzy with ringing in the ears (tinnitus) or deafness?
Other Related Symptoms
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Symptoms from the same body system / part
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Developed by doctors.
Ubie is supervised by 50+ medical experts worldwide
Seiji Kanazawa, MD, PHD
Obstetrics and gynecology (OBGYN)
National Center for Child Health and Development, Japan