Feeling Cold For No Reason

What Causes Feeling Cold?

Feeling cold can have various causes, ranging in severity from 'worrying' to 'life-threatening'.  Finding the true cause means ruling out or confirming each possibility – in other words, diagnosis.

Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose feeling cold, 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 "feeling cold" as a symptom.  Here are eight of many possibilities (more below):
  • Tuberculosis
  • Drug Side-Effects
  • Hypothyroidism
  • Seasonal Affective Disorder
  • Anorexia/Starvation Tendency
  • Mercury Toxicity
  • Vitamin B-Complex Need
  • Chronic Infection

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:
poorly-removed amalgams
fatigue that worsens during the day
past amalgam filling removal
history of frequent dieting
low Metformin use
dark spots on gums
tuberculosis in family members
regular sore throats
seasonal affective disorder
back-of-neck lymph node problems
T4-only thyroid hormone use
early puberty onset
... and more than 100 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of feeling cold:
Cause Probability Status
Hypothyroidism 95% Confirm
Tuberculosis 17% Unlikely
Anorexia/Starvation Tendency 18% Unlikely
Mercury Toxicity 5% Ruled out
Chronic Infection 5% Ruled out
Drug Side-Effects 0% Ruled out
Seasonal Affective Disorder 0% Ruled out
Vitamin B-Complex Need 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 Metabolic Symptoms section of the questionnaire, The Analyst™ will ask the following question about feeling cold for no reason:
How often do you feel cold for no apparent reason? This question refers to your whole body, not just hands and feet.
Possible responses:
→ Don't know / hands and feet only
→ Never / less than once a year
→ Occasionally - several times a year
→ Regularly - several times a month
→ Often/always
Based on your response to this question, which may indicate not feeling unusually cold, occasionally feeling unusually cold, regularly feeling unusually cold or often/always feeling unusually cold, The Analyst™ will consider possibilities such as:
(Prescription) Drug Side-Effects
Certain medications – such as those prescribed for hypertension, angina, or migraine – can cause feelings of being cold because beta blockers may reduce the circulation in the extremities while increasing blood circulation to the heart.
Anorexia / Starvation Tendency
Underweight people often feel cold due to having less fat and muscle mass.  Body fat acts as insulation to keep the body warm; muscle activity generates heat.
Diabetes Type II
The coldness caused by diabetic hypoglycemia is usually accompanied by weakness and, in severe cases, disorientation and fainting.
Vitamin B-Complex Requirement
Vitamin B-complex deficiency is known to cause feelings of internal coldness as your core body temperature dips.
... and also rule out issues such as:

Related Questions

Metabolic Symptoms