A person with anemia will feel tired and weak because the body's tissues are being starved of oxygen. In fact, fatigue is the main symptom of most types of anemia. The severity of symptoms is in part related to the severity of anemia. Mild anemia can occur without symptoms and may be detected only during a medical exam that includes a blood test.
Symptoms of anemia include:
Fatigue
Weakness
Fainting
Breathlessness Heartpalpitations (rapid or irregular beating)
Dizziness
Headache
Ringing in the ears (tinnitus)
Difficulty sleeping
Difficulty concentrating
Common signs include:
Pale complexion
The normally red lining of the mouth and eyelids fades in color
Rapid heartbeat (tachycardia)
Abnormal menstruation (either absence of periods or increased bleeding)