Fatigue, gut symptoms, headaches & more

Overlap with other conditions

How symptoms like fatigue, gut issues, headaches and dizziness can sit alongside other diagnoses, and why this does not make them any less real.

Many people living with chronic pain also experience other symptoms such as fatigue, gut problems, headaches, dizziness or brain fog. It can feel as if your whole body has joined in. You might have one or more medical labels, or have been told that everything is “functional” or “medically unexplained”.

This can be confusing and frightening. You might find yourself wondering whether something serious has been missed, or whether your body is simply failing you. In reality, there is often a simpler, kinder explanation: a nervous system that has become highly sensitised and is expressing this through several body systems at once.

Why symptoms often cluster together

The brain and nervous system are connected to every organ system in the body. When they become overprotective, they do not only send pain signals. They can also affect muscle tension, gut motility, heart rate, breathing patterns, energy levels and more. This is why symptoms like:

  • ongoing tiredness or “crash and burn” fatigue
  • irritable bowel or unsettled digestion
  • tension headaches or migraines
  • tight chest or breathlessness feelings
  • light-headedness, wooziness or brain fog

so often show up together with chronic pain. They are different ways of the same protection system saying, “Something feels unsafe.”

Having a diagnosis does not rule out neuroplastic symptoms

Many people worry that if they have an existing diagnosis - such as arthritis, a disc bulge, IBS, migraine, or another long-term condition - then everything they feel must come from that diagnosis alone. In practice, things are usually a mix.

You can have a genuine medical condition and a sensitised nervous system at the same time. The stress of living with a diagnosis often makes the nervous system more reactive. Neuroplastic approaches do not replace appropriate medical care; they sit alongside it and help to reduce the extra layer of suffering created by fear, tension and constant alarm.

When to keep working with your medical team

It is important to stay in touch with your usual healthcare professionals, especially if symptoms change suddenly or you develop something new. Red flag symptoms should always be checked. Once serious conditions have been ruled out or monitored, however, it is reasonable to explore how much of what you feel may be coming from a nervous system that is simply doing too much.

Many people find that understanding this reduces some of the fear around each new sensation. Instead of assuming “this must be something terrible”, it becomes possible to consider, “this might be my system reacting, and there are things I can do to help it calm down.”

Seeing the bigger picture of your symptoms

If you map out your symptoms over time, you may notice that pain, fatigue, gut symptoms and headaches rise and fall together in response to stress, sleep, emotions or feeling safe. This pattern is a strong sign of a whole-system response rather than separate faults in each body part.

This bigger picture can be surprisingly reassuring. It means your body is not breaking in lots of different places. It is one system, trying hard to protect you, and sending signals in several ways at once.

You are not imagining it - and you are not stuck

Overlapping symptoms can make life feel chaotic and out of control. Recognising the role of a sensitised nervous system does not make any of it imaginary; it simply gives you a clearer target for change. As you learn ways to support your system - through education, regulation, pacing, emotional support and movement - it is common for several symptoms to soften together.

You do not have to solve everything at once. Starting with understanding and small, doable changes is often enough to begin shifting the overall pattern in a kinder direction.