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Doctor insights on: Why Do I Get Dizzy When I Stand Up Fast

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Dr. Dariush Saghafi
3,543 doctors shared insights

Dizziness (Definition)

Dizziness is a feeling of light headedness that includes loss of balance, vertigo, or the feeling as ...Read more


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Everytime I stand up (fast or not) I get extremely dizzy and black out for almost 8 seconds. I fell to the floor last time. Should I be worried?

Everytime I stand up (fast or not) I get extremely dizzy and black out for almost 8 seconds. I fell to the floor last time. Should I be worried?

Yes: Fainting upon standing up in a teen age girl sounds like "orthostatic hypotension." It is a condition that you should definitely have it seen by your doctor. Your doc may need to clarify other symptoms you may be having and perform tests. The issue that first came to my mind based on your symptoms is irregular heart beat, but other conditions need to be ruled out. Please see your doctor. Cheers ...Read more

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Why do you get dizzy when you stand up too fast?

Why do you get dizzy when you stand up too fast?

A couple reasons: You could be dehydrated, be taking meds that drop your blood pressure, have anemia, and thyroid issues. Would suggest visiting your regular doctor and check blood pressure supine and standing. ...Read more

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My vision goes fuzzy when I stand up and I get dizzy and hold onto something. It's not just when I stand up too fast it happens 80% of the time.

My vision goes fuzzy when I stand up and I get dizzy and hold onto something. It's not just when I stand up too fast it happens 80% of the time.

Orthostatic hypotens: What you have, is an autonomic cardiovascular dysfunction which is also known as orthostatic hypotension. Whenever you stand up, the lower extremity vessels remaining dilated, and the gravity pulls the blood the lower body. Therefore less black goes into the brain, and you get a dizzy feeling. ocationally some patients may black out. You should see a physician to start your own alpha mimetic medi ...Read more

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Can you tell me when i stand up too fast i get dizzy and my head hurts..Why?

Orthostatic hyptens: In older people this is commonly associated with drop of blood pressure and is termed orthostatic hypotension. If your on beta blockers for blood pressure, this could be a contributing factor. See you local doctor for exam and treatment. ...Read more

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I feel extreamly dizzy when I get up to fast why is this hapening? I fear it maybe a concusion how long will it stay like this if it is?

Pre-syncope: Dizziness upon standing is a common symptom. It is called pre-syncope. It occurs because your blood has to suddenly re-distribute itself when you stand up. So there will be a sudden decrease in blood flow to your brain, and this causes you to feel dizzy or light headed. The best thing is to get up slowly. If it continues, you may want to get checked by your doctor. ...Read more

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For the past 7 months I have had episodes through out the days if i move to quickly or my head moves to fast i kinda get dizzy lightheaded?

For the past 7 months I have had episodes through out the days if i move to quickly or my head moves to fast i kinda get dizzy lightheaded?

BPPV: Benign paroxysmal positional vertigo. Is the dizziness vertiginous, meaning, is there a spinning component to the dizziness? If so, and if the dizziness definitely gets worse with head movement, then this is likely the bppv. If other symptoms occur, the DX can change. Tx is usually maneuvers, decongestants, sometimes steroids, and sometimes Meclizine or other meds for symptomatic dizziness. ...Read more

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I have had head rushes for as long as i can remember. I get dizzy and sometime loose sight when I stand up too fast, especially in the shower. ?

I have had head rushes for as long as i can remember.  I get dizzy and sometime loose sight when I stand up too fast, especially in the shower. ?

"Head rushes" are: caused by a sudden decrease in blood pressure and blood flow to the brain with standing Standing up too quickly or too long, hot shower & dehydration can aggravate the problem. Most people's heart, nerves & blood vessels compensate so quickly that they don't notice anything. But severe head rushes can be caused by an underlying medical problem. Please see a doctor. Best wishes. Dr.Anne. ...Read more

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I get dizzy frequently when I stand up. I have to stop and squeeze my eyes for a few seconds. I'm not getting up too fast and I'm in great shape.

I get dizzy frequently when I stand up.  I have to stop and squeeze my eyes for a few seconds. I'm not getting up too fast and I'm in great shape.

Orthostatic hypotenti: This is called Orthostatic hypotention, which is an autonomic dysfunction. 1. Feeling lightheaded or dizzy after standing up. 2. Blurry vision. 3. Weakness. 4. Fainting (syncope). 5.Confusion. 6. Nausea. Couses: Dehydration, Heart problems, Endocrine problems, Nervous system disorders. Medications: Droxidopa (Northera) pyridostigmine (Regonol, Mestinon epoetin (Epogen, Procrit (epoetin alfa) caffeine. ...Read more