Why Doesn't Pain Always Match Tissue Damage? One of the most common questions people with persistent pain ask is: 'But my scan came back clear — so why am I still in pain?' The answer lies in how the nervous system processes pain signals. Pain is not simply a signal from damaged tissue. It is an output of the nervous system — a protective response generated when the brain perceives threat. This is why two people with identical injuries can have very different pain experiences, and why pain can persist long after tissue healing has occurred. Central Sensitisation With ongoing pain, the nervous system can become sensitised — more responsive to inputs that would normally be non-painful. This process, called central sensitisation, is well-documented in research and is thought to play a role in many chronic pain conditions including fibromyalgia, chronic low back pain, tension headaches, and persistent neck pain. In a sensitised nervous system, normal movement may produce pain disproportionate to the stimulus, light pressure may feel more intense than expected, and stress or poor sleep can significantly increase pain levels. This reflects real, measurable changes in nervous system function — not psychological weakness. The Somatic System and Body Awareness The somatic nervous system governs voluntary movement and body awareness. In people with chronic pain, somatic awareness can become disrupted — contributing to altered movement patterns and ongoing protective tension in the fascial and muscular systems. Physiotherapy approaches that consider the nervous system's role — sometimes called nervous system-informed care — aim to address these layers through pain education, graded movement exposure, manual therapy such as Fascial Counterstrain, and lifestyle support. No single approach works for everyone. Assessment is needed to understand your specific presentation and determine what may be appropriate for you. Disclaimer: This article provides general educational information only. It is not a substitute for clinical assessment or medical advice.