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NHS describes these as “medically unexplained symptoms” - something around one in four people visit their GP for. These can be especially “distressing” and “difficult” due to the fact you don’t know what is going on with your body, the health body warns.
“Many people have persistent physical symptoms, such as dizziness or pain, that don't appear to be caused by a medical condition,” the NHS explains. “They are sometimes known as medically unexplained symptoms when they last for more than a few weeks, but doctors can't find a problem with the body that may be the cause.
“This doesn't mean the symptoms are faked or "all in the head" – they're real and can affect your ability to function properly. Not understanding the cause can make them even more distressing and difficult to cope with.”
The NHS adds: “The GP should also investigate whether you might have an associated problem, such as depression or anxiety. Physical symptoms can cause depression and anxiety, and these can in turn make the physical symptoms worse, creating a vicious circle.”
However, in some cases, your symptoms could be caused by a “poorly understood” syndrome. Examples of these include:
- Chronic fatigue syndrome (CFS) – also known as ME
- Irritable bowel syndrome (IBS)
- Fibromyalgia (pain all over the body)
- Functional neurological disorders (FNDs) – symptoms thought to be caused by nervous system problems rather than a physical condition.
The NHS states “The fact that doctors are unable to find a condition causing these symptoms isn't unusual in medicine, and it doesn't mean that nothing can be done to help you.”