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Doctor insights on: Causes Of Sudden Paleness And Fainting

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Can the vagal nerve or vagal response be overactive or malfunction? Because whenever I eat anything I get very lightheaded, faintness, pale and shaky.

Can the vagal nerve or vagal response be overactive or malfunction? Because whenever I eat anything I get very lightheaded, faintness, pale and shaky.

Vagal Nerve Problems: Yes, an exaggerate vagal nerve response can contribute to dizziness. Probably, this happens when the vagal nerve causes the heart rate to slow down.

If this happens any more often than rarely, go see your doctor. You need to exclude irregular heart rate rate, fluctuation in blood pressure, and sudden rising or falling blood sugar - three reasons for dizziness around meals. ...Read more

Dr. Rajiva Goyal
1,205 Doctors shared insights

Syncope (Definition)

Loss of consciousness and postural tone caused by diminished cerebral blood flow. Syncope may indicate a particular medical condition, however often it may occur in an otherwise healthy individual. It is a common problem, accounting for 3% ...Read more


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The white part of my eye ball has this pale faint blue to it, what does this mean, and why is it like that?

The white part of my eye ball has this pale faint blue to it, what does this mean, and why is it like that?

Thin sclera: Where the sclera is thin, it appears blue from the deoxygenated blood the choroidal blood vessel layer next to the sclera. This is normal in patients who are nearsighted. ...Read more

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Getting bloodwork evrytime I get pale, sweaty, dizzy, &tunnel vision w/spots, I almost faint&i have to stay still for a while. Why do I feel that evytime?

Getting bloodwork evrytime I get pale, sweaty, dizzy, &tunnel vision w/spots, I almost faint&i have to stay still for a while. Why do I feel that evytime?

Vasovagal response: You have an exaggerated response to drawing blood. Some people are just wired that way. You should probably lay down when giving blood to prevent an injury to you or the lab staff. ...Read more

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I have extremely pale skin, my cuts/bruises take forever to heal, and I feel light headed/faint easily. Am I anemic? What should I do?

I have extremely pale skin, my cuts/bruises take forever to heal, and I feel light headed/faint easily. Am I anemic? What should I do?

Possible anemia: The first thing to do is to see your primary care doctor. They will check you out an check a blood count. If you take Aspirin every day you will be more likely to bruise and or bleed. Your doctor can also check why you are lightheaded and faint often. Good luck and take care. ...Read more

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I applied a lidoderm patch to my neck & 1 hour later I was sweating, pale, faint & heart rate in the 50s (nml 90s). Could this be a reaction?

I applied a lidoderm patch to my neck & 1 hour later I was sweating, pale, faint & heart rate in the 50s (nml 90s). Could this be a reaction?

Yes!: If someone has these symptoms after placing a patch which takes time to absorb, it needs to be removed immediately. If those symptoms don't improve, be seen emergently. Symptoms as listed above can be very serious. ...Read more

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What is used calcium and glucose in case of faintness state (with tachycardia, respiratory insufficiency, pallor, poor view and hearing) for?

What is used calcium and glucose in case of faintness state (with tachycardia, respiratory insufficiency, pallor, poor view and hearing) for?

Suspected low sugar: In the short term, low blood sugar is more dangerous than high level and so rapidly giving sugar for suspected symptom is a safer bet. I doubt that u had low calcium--as u likely would have experienced muscle spasm etc...but giving u some MAY reduce the risk of cardiac rhythm trouble. I would recommend checking with doc to see why u had trouble breathing...? asthma? Good luck ...Read more

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Left side back and stomach pain. Sometimes it feels like L sides being squeezed, gas. Occasional loose bowels, dizzy/faint, sweating spells and pale.

Left side back and stomach pain. Sometimes it feels like L sides being squeezed, gas. Occasional loose bowels, dizzy/faint, sweating spells and pale.

Abdominal al pain: You need to see your 1ry care physician for complete examination & evaluation of your symptoms. Avoid fatty, spicy &dairy food until you get to see your doctor. Good luck. ...Read more

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What causes passing out, paleness and becoming cold? All at one time. This has happend three times now this year.

Syncope: Multiple possibilities, usually due to blood pressure drops or cardiac disorders. Chemical imbalances including endocrine issues can complicate the issue. ...Read more

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What causes pale color stools?

What causes pale color stools?

Pale stools: Pale stools can come from different sources. Usually it is due to poor fat absorption, indicationg a problem with the liver or gall bladder. Sometimes in liver failure, bilirubin builds up in the system, and can cause yellowing of the stools. An evaluation of the liver is usually warranted. ...Read more

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What causes pale bulky stool, ?

What causes pale bulky stool, ?

Pale bulky stools: Pale bulky stools are due to steatorrhoea, or called malabsorption syndrome. It is due to failure to absorp nutrients from gastro intestinal tract. There are at least 200 causes of the syndrome.Celiac disease is one of the most common inherited malabsorption syndrome. ...Read more

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What causes extremely pale stools?

What causes extremely pale stools?

See your doctor: If you are describing clay colored stools, you should see your doctor. This may represent a problem with what is called enterohepatic circulation and should be evaluated with blood work and possibly urine testing as well. ...Read more

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What causes pale diarrhea?

What causes pale diarrhea?

Light (clay) colored: Bile & your gut's bacterial flora account in large part for color & volume of stool. Absence of bile results in pale, clay-color stool. Lots of other things also affect stool appearance: ingested foods, medications (peptobismol, antacids), swallowed blood or bleeding from gut, infection/antibiotics, inflammation, maldigestion, & the amount of mucus mixed with stool, as well as transit time of food. ...Read more

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How does anemia cause paleness?

How does anemia cause paleness?

Red cells are red!: When severe anemia is present, there are fewer red blood cells in circulation. The red cells give lighter-skinned people some color. Thus, with anemia, people are less red, and appear pale. ...Read more

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What can cause pale stool?

What can cause pale stool?

Pale stool: Have clay / pale colored stools checked out. This can occur when the liver does not produce enough bile or when bile is blocked from leaving the liver. Some possible causes include: gall stones, bile duct cysts, strictures of bile ducts, hepatitis, some medications, cancer, etc. ...Read more

Dr. Alvin Lin Dr. Lin
1 doctor agreed:
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What would cause very pale and sweating and clamy?

Dr. Alvin Lin Dr. Lin
1 doctor agreed:
What would cause very pale and sweating and clamy?

Go to hospital now: Your symptoms are way too non-specific for us to give you any help aside from telling you to have someone drive you to an emergency room right now. And chew up and swallow an Aspirin before you go as you might be having a heart attack (yes, I know, even w/o chest pain). Or this might be an infection that's spread into your blood. Bottom line, get evaluated now. Not tomorrow. ...Read more

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Can constpation cause pale stools?

Can constpation cause pale stools?

Pale rider: No - constipation by itself cannot change the color of stools - that is either a function of what you eaten or sometimes from blockages of the liver ducts. Pale is subjective - you must see a physician for this as pale stools can be the sign of a serious problem - but not always. ...Read more

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My friend is shaking and her skin turned pale what coud have caused this and how can I fix this?

My friend is shaking and her skin turned pale what coud have caused this and how can I fix this?

Needs evaluation: Many causes of turning pale and shaking (fear, cold, drugs, fainting (vasovagal), seizure, airway obstruction, heart and lung problems, systemic infection, thyroid/hormone problems, cancer etc...) - many require urgent or emergent intervention. ...Read more

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What causes pale fecal matter? Normally it is a darker brown but why is it coming out a very pale/light biege colour?

What causes pale fecal matter? Normally it is a darker brown but why is it coming out a very pale/light biege colour?

May be normal: Stool color is defined by the colorizing agent & changes that happen during digestion. It starts out deep green (bile) and goes through shades of green to yellows to browns depending on how long it stays in the body and the action of gut bacteria which change it. Lighter colors could be lake of bile input (liver issue) or just a variation of normal. ...Read more

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What can cause pale lips?

What can cause pale lips?

Anemia: If the lips in question were heathy and pink, and now appear pale, then anemia is the most likely diagnosis. Does this person have a lack of energy? A cause for blood loss? A peculiar diet? Have pale lips checked out by your general physician. ...Read more

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Could gilberts syndrome cause pale skin?

Could gilberts syndrome cause pale skin?

Not likely: Gilbert's syndrome is an elevated total and indirect bilirubin unrelated to any disease and is caused by an inherited difference in bilirubin metabolism. It is usually benign although some medicine metabolism may also be affected, there is usually no need to adjust medication doses except in rare instances. It may very occasionally cause a slight yellow skin or sclera tint. ...Read more

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Can powdered donuts cause pale color stool?

Unlikely: Pale stool usually comes from a lack of bile production. If you are having this regularly, I would seek out the help of a gastroenterologist. ...Read more

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Is it possible for uncontrolled breathing cause deep pale skin?

Is it possible for uncontrolled breathing cause deep pale skin?

Unsure: If you are describing the rapid shallow breathing associated with an anxiety attack, there are a number of symptoms that can occur including dizziness, light-headedness, pale skin color, palpitations, shortness of breath, difficulty swallowing and others. An assessment by a qualified mental health provider is worthwhile to help you decide if other physical problems might be the cause. ...Read more

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What causes white bags under the eyes? Under my eyes I have really pale white bags, they are especially noticable in the morning.

What causes white bags under the eyes? Under my eyes I have really pale white bags, they are especially noticable in the morning.

Sinus or allergies: Clear or pale bags are usually from sinus issues or allergies. Worse in the morning, then as you stand up and walk around, gravity pulls the fluid out and they flatten a little. ...Read more

Dr. Tanya Russo
146 Doctors shared insights

Fainting (Definition)

Faintness is a clinical finding similar to a loss of consciousness and collapse. This can include ...Read more


Passed Out (Definition)

Or passing out implies loss of consciousness. Frequently a cardiac ...Read more