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.
Common signs include:
Pale complexion
The normally red lining of the mouth and eyelids fades in color
Rapid heartbeat
Easy fatigue and loss of energy
Shortness of breath and headache, particularly with exercise
Difficulty concentrating
Dizziness
