General Unexplained Dizziness

What Causes Dizziness?

Dizziness can have various causes, ranging in severity from 'minor' to 'generally fatal'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

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Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose dizziness, we could:

  • Research the topic
  • Find a doctor with the time
  • Use a diagnostic computer system.
The process is the same, whichever method is used.

Step 1: List all Possible Causes

We begin by identifying the disease conditions which have "dizziness" as a symptom.  Here are eight of many possibilities (more below):
  • Senile Dementia
  • Drug Side-Effects
  • Ectopic Pregnancy
  • Iron Deficiency Anemia
  • Hypertension
  • Hypotension
  • Electrical Hypersensitivity
  • Stroke Risk

Step 2: Build a Symptom Checklist

We then identify all possible symptoms and risk factors of each possible cause, and check the ones that apply:
low aerobic exercise level
low systolic blood pressure
acute abdominal pain
high systolic blood pressure
nails that are mostly white
occasionally feeling unusually cold
regular chest tightness
black/brown fingernails
regular unexplained vomiting
senile dementia
itchy skin
frequent sleepwalking
... and more than 70 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of dizziness:
Cause Probability Status
Iron Deficiency Anemia 98% Confirm
Stroke Risk 25% Unlikely
Hypertension 13% Unlikely
Hypotension 0% Ruled out
Drug Side-Effects 0% Ruled out
Electrical Hypersensitivity 0% Ruled out
Senile Dementia 0% Ruled out
Ectopic Pregnancy 0% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis

The Analyst™ is our online diagnosis tool that learns all about you through a straightforward process of multi-level questioning, providing diagnosis at the end.

In the General Symptoms section of the questionnaire, The Analyst™ will ask the following question about general unexplained dizziness:
Do you ever feel dizzy or faint when you are not standing up or sitting up suddenly?
Possible responses:
→ Don't know
→ Never / very rarely
→ Occasionally - several times per year
→ Often - several times per month
→ Always or almost always
Based on your response to this question, which may indicate either no general dizziness or general dizziness, The Analyst™ will consider possibilities such as:
(Prescription) Drug Side-Effects

Almost all medications list dizziness as a possible side-effect.  Examples include blood pressure medications, sedatives, tranquilizers, antidepressants, pain relievers, some antibiotics.  Diuretics cause dehydration, blood electrolyte changes, heart effects and/or direct side-effects.

Brain Tumor

Dizziness and disorientation are possible symptoms of a brain tumor.


Dehydration can cause a drop in blood pressure, which reduces the amount of oxygen that the brain receives and causes dizziness.  Dehydration can also lead to an inner ear fluid imbalance, which can cause dizziness.

Hypertension (High Blood Pressure)

High blood pressure (usually extremely high) can cause damage to the brain, with associated dizziness.


Dizziness and fainting spells are a possible symptoms of hypoglycemia, which may in turn be a reaction to insulin.


When the vestibular nerve (connecting the inner ear to the brain) is affected, dizziness or vertigo can result, especially in association with diabetes.

Senile Dementia

Dizziness can be caused by any condition causing confusion or an altered state of mind, including medications, drugs or alcohol.

Concerned or curious about your health?  Try The Analyst™
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