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Sensitive areas of tight muscle fibers can form in your muscles after injuries or overuse. These sensitive areas are called trigger points. A trigger point in a muscle can cause strain and pain throughout the muscle. When this pain persists and worsens, doctors call it myofascial pain syndrome. 1  Symptoms.
It's possible that, for some of us, foot pain is caused purely by fibromyalgia or chronic fatigue syndrome. Our nerves are highly sensitive, and few areas take a beating like our feet. It stands to reason that they could hurt just because the nerves got riled up. However, foot pain can come from a lot of causes, and your fibromyalgia/chronic fatigue syndrome would amplify the pain. Some common overlapping conditions that could cause foot pain include: Myofascial pain syndrome,