Fatigue That Worsens During The Day

What Causes Afternoon Or Evening Fatigue?


Diagnosis is usually a complex process due to the sheer number of possible causes and related symptoms.  In order to diagnose afternoon or evening fatigue, 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 "afternoon or evening fatigue" as a symptom.  Here are five possibilities:
  • Hypoglycemia
  • Hypothyroidism
  • Caffeine Intoxication
  • Adrenal Fatigue
  • Low Estrogens

Step 2: Build a Symptom Checklist

often/always feeling unusually cold
regularly feeling unusually cold
poor concentration during cycle
severe tinnitus
meal-related bloating
very great unexplained weight gain
adult acne
temple-based headaches
having non-scalp scaly/flaky skin
probable miscarriage
poor tolerance of heat
occasional slow recovery from colds
... and more than 130 others

Step 3: Rule Out or Confirm each Possible Cause

A differential diagnosis of your symptoms and risk factors finds the likely cause of afternoon or evening fatigue:
Cause Probability Status
Hypothyroidism 94% Confirm
Hypoglycemia 17% Unlikely
Caffeine Intoxication 1% Ruled out
Low Estrogens 1% Ruled out
Adrenal Fatigue 1% Ruled out
* This is a simple example to illustrate the process

Arriving at a Correct Diagnosis


Do you have fatigue that gets worse as the day progresses (afternoon or evening tiredness)?
Possible responses:
→ Don't know
→ No
→ Sometimes / moderately
→ Often / moderately
→ Often / severely
Based on your response to this question, which may indicate either absence of evening/afternoon fatigue or fatigue that worsens during the day, The Analyst™ will consider possibilities such as:
Caffeine Intoxication

Caffeine is known to cause periods of exhaustion.