Unexplained Vomiting

What Causes Unexplained Vomiting?

Unexplained vomiting 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 unexplained vomiting, 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 "unexplained vomiting" as a symptom.  Here are eight of many possibilities (more below):
  • Chronic Renal Insufficiency
  • Food Poisoning
  • Ectopic Pregnancy
  • Ovarian Cysts
  • Zinc Toxicity
  • Mesenteric Ischemia
  • Aspartame/Neotame Side-Effects
  • Epstein-Barr Virus

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:
moderate meal-induced pain
regular sore throats
meal-induced pain for under a week
severe right iliac pain
unusual vaginal bleeding
bowel movement changes
incoherent speech
recent non-cyclical breast pain
kidney failure
severe hypogastric pain
mild discomfort when breathing
constant abdominal fullness
... 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 unexplained vomiting:
Cause Probability Status
Aspartame/Neotame Side-Effects 99% Confirm
Mesenteric Ischemia 24% Unlikely
Ovarian Cysts 12% Unlikely
Chronic Renal Insufficiency 4% Ruled out
Food Poisoning 1% Ruled out
Epstein-Barr Virus 0% Ruled out
Ectopic Pregnancy 0% Ruled out
Zinc Toxicity 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 Gastrointestinal Symptoms section of the questionnaire, The Analyst™ will ask the following question about unexplained vomiting:
Approximately how often do you suffer from unexplained vomiting? Do not include vomiting that has an obvious cause, for example overeating or drinking too much alcohol.
Possible responses:
→ Don't know
→ Never / very rarely
→ Occasionally - a few times per year
→ Regularly - a few times per month
→ Often - several times per week
Based on your response to this question, which may indicate no unexplained vomiting, occasional unexplained vomiting, regular unexplained vomiting or frequent unexplained vomiting, The Analyst™ will consider possibilities such as:
Gastric/Peptic/Duodenal Ulcers

Bleeding ulcers may cause nausea and vomiting of acidified blood resembling "coffee grounds" material.

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