The signs and symptoms of Chronic Fatigue Syndrome (CFS) can vary from person to person, but typically include:
Severe and persistent fatigue: This is the most common symptom and it is not relieved by rest, and it can be severe enough to interfere with daily activities and work.
Post-exertional malaise: This refers to a worsening of symptoms after even minor physical or mental exertion, which can last for days or weeks.
Unrefreshing sleep: People with CFS often report difficulty falling asleep, staying asleep, or feeling rested after sleep.
Cognitive difficulties: These can include problems with memory, concentration, and attention.
Pain: Many people with CFS experience pain, such as headaches, muscle and joint pain, and sore throat.
Other symptoms: CFS can also cause symptoms such as flu-like symptoms, swollen lymph nodes, and a feeling of having a low-grade fever. Also, you may experience worsening of symptoms while standing or sitting upright; you might feel lightheaded, dizzy, or weak, and you may have blurred vision or see spots.
It’s worth noting that the symptoms of CFS can vary in severity and duration, and can be similar to those of other conditions, making it difficult to diagnose. Additionally, the symptoms can come and go, and they may be triggered by physical or emotional stress.