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Fatigue    
Headache    
Loss of appetite    

36 possible causes of "Fatigue, Headache, Loss of ap..."
Symptoms:
  • Excessive sweating
  • Tender lymph node
  • Fatigue
  • Headache
  • Loss of appetite
  • Shortness of breath
1. Cold and Flu Overview
Overview Colds (common colds) and the flu (influenza) are contagious infections that affect the respiratory system. Both are airborne illnesses, spread through coughing and sneezing. Colds typically are confined to th...
Symptoms:
  • Pain
  • Watering eyes
  • Fatigue
  • Headache
  • Loss of appetite
  • Body ache
2. Common Cold Overview
The common cold is a virus that involves symptoms like sneezing, a runny nose and a headache. Learn the causes, symptoms and treatments for the common cold now!
Symptoms:
  • Impatient
  • Sleep disturbance
  • Fatigue
  • Headache
  • Loss of appetite
  • Burping
3. Anxiety
What is anxiety? Anxiety often manifests itself as an apprehension about daily life. Learn the basics with this overview of the types of anxiety disorders.
Symptoms:
  • Dry hair
  • Fainting
  • Fatigue
  • Headache
  • Loss of appetite
  • Body temperature below normal
4. Anorexia Nervosa
Almost everyone worries about gaining too much weight. But in some people the worry becomes obsessive, causing a condition called anorexia nervosa. Anorexia nervosa is an eating disorder that can result in severe weigh...
Symptoms:
  • Short stature
  • Obesity
  • Fatigue
  • Headache
  • Loss of appetite
  • Hair loss
5. Hypothyroidism
The thyroid gland is an important endocrine gland that controls the body's metabolism. It is a small butterfly-shaped gland located in the front of the neck just below the Adam's apple. The thyroid gland produces th...
Symptoms:
  • Loss of appetite
  • Headache
  • Fatigue
  • Hallucinations
  • Agitation
  • Nausea
6. Low Blood Sodium (Hyponatremia)
Low blood sodium is also known as hyponatremia . Sodium is an electrolyte. It helps maintain the balance of water in and around your cells. Sodium is important for proper muscle and nerve function. It also keeps you...
Symptoms:
  • Sleepwalking
  • Tired
  • Fatigue
  • Headache
  • Loss of appetite
  • General weakness
7. Migraine with Aura
Migraine is a disorder characterized by repeated attacks of severe headache. A migraine headache causes throbbing or pulsating pain, usually on only one side of the head. These headaches are often associated wit...
Symptoms:
  • Swollen ankle
  • Noise intolerance
  • Fatigue
  • Headache
  • Loss of appetite
  • Fidgeting
8. PMS (Premenstrual Syndrome)
Premenstrual syndrome (PMS) is a condition that affects a woman's emotions, physical health, and behavior during certain days of the month generally just before her menstrual period. PMS symptoms start five to 11 day...
Symptoms:
  • Loss of appetite
  • Excessive sweating
  • Fatigue
  • Headache
  • Hyperventilation
  • Dark urine
9. Heat Emergencies
Heat emergencies are health crises caused by exposure to hot weather and sun. Heat emergencies have three stages: heat cramps, heat exhaustion, and heatstroke. All three stages are serious. If left untreated, the firs...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Neck lump
  • Groin lump
  • Fatigue
  • Headache
  • Loss of appetite
  • Seizures
10. Infectious Mononucleosis
Infectious mononucleosis, often called "mono," is caused by the Epstein-Barr virus (EBV). It typically occurs in teenagers, but you can get it at any age. The virus is spread through saliva, which is why some peopl...

This feature is for informational purposes only and should not be used to diagnose.
Please consult a healthcare professional if you have health concerns.
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