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Lightheadedness
Dizziness    
Fatigue    

12 possible causes of "Lightheadedness, Dizziness, F..."
Symptoms:
  • Pain
  • Blood in stool
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Clammy skin
1. Bleeding
Bleeding is the name commonly used to describe blood loss. It can refer to blood loss inside the body (internal bleeding) or blood loss outside of the body (external bleeding). Blood loss can occur in almost any area o...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Abnormal heart rhythms
  • Headache
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Crushing chest pain
2. High Blood Pressure Overview
Hypertension, or high blood pressure (HBP), increases the risk of heart attack, stroke & other health problems. Learn HBP symptoms & get treatment under an MD's care.
Symptoms:
  • Loss of appetite
  • Dark urine
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Hyperventilation
3. 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:
  • Bounding pulse
  • Tired
  • Lightheadedness
  • Dizziness
  • Fatigue
  • General weakness
4. Atrial Fibrillation and Flutter
Atrial fibrillation and atrial flutter are irregular heart rhythms that occur when the upper chambers of your heart (the atria) beat too fast.Atrial fibrillation can be sustained or can occur in bursts. It creates a...
Symptoms:
  • Fatigue
  • Lightheadedness
  • Dizziness
  • Shortness of breath
  • Fast heart rate
  • General weakness
5. Paroxysmal Supraventricular Tachycardia (PSVT)
Paroxysmal supraventricular tachycardia (PSVT) is a faster-than-normal heart rate. The term paroxysmal means that it only happens from time to time. In the case of PSVT, the rapid heart rate can last from a few minute...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Indigestion
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Sciatica
  • Flatulence
6. Pregnancy
Pregnancy occurs when a sperm fertilizes an egg after it is released from the ovary. An egg enters one of the fallopian tubes where it may be fertilized. The egg then enters the uterus where implantation occurs...
Symptoms:
  • Abnormal heart rhythms
  • Loss of appetite
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Heart rate altered
7. Acute Mountain Sickness
Hikers, skiers and adventurers who travel to high altitudes can sometimes develop acute mountain sickness, also referred to as altitude sickness or high altitude pulmonary edema. It typically occurs at about 8,000 fee...
Symptoms:
  • Loss of appetite
  • Abdominal pain
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Agitation
8. Alcoholic Ketoacidosis
Cells need glucose (sugar) and insulin to function properly. Glucose comes from the food you eat, and the pancreas produces insulin. When you drink alcohol, your pancreas may stop producing insulin for a short time...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Nausea
  • Coma
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Rapid breathing
9. Addisonian Crisis (Acute Adrenal Crisis)
When we're stressed out, our adrenal glands produce a hormone called cortisol. Cortisol helps our bodies respond effectively to stress. It also plays a role in bone health, immune response, and the metabolism of food...
This condition is considered a medical emergency. Urgent care may be required.
Symptoms:
  • Low blood pressure
  • Diarrhea
  • Lightheadedness
  • Dizziness
  • Fatigue
  • Nausea
10. Marine Animal Bites or Stings
Many marine animals bite or sting. Some deliver venom through their teeth, tentacles, spines, or skin. Others, such as sharks, aren't venomous but can inflict serious bites with their large, sharp teeth. Most creature...
This condition is considered a medical emergency. Urgent care may be required.

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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