What is chronic fatigue syndrome?

Chronic fatigue syndrome (CFS), also known as myalgic encephalomyelitis (ME) and ME/CFS, is a long-term medical condition characterized by a wide range of symptoms.

Symptoms 

• worsening of symptoms with movement
• long-term fatigue
• sleep that isn't invigorating
• memory, focus, and concentration difficulties
• dizziness that deteriorates with moving from laying or sitting to standing

Causes

• viral infections
• immune system problems. 
• hormonal imbalances
• physical or emotional trauma.