What are the symptoms of low red blood count?

The typical signs of anemia are extreme fatigue and shortness of breath, but a low red blood count can cause a host of symptoms, including pale or clammy skin, rapid heart rate, chest pain, or difficulty staying warm. Because low oxygen in the blood can affect the brain as well, some patients feel dizzy and light-headed or have difficulty concentrating or remembering things. Headaches are also common.