Persistent Fibromyalgia-like symptom presentation in Long COVID-associated chronic musculoskeletal pain: a longitudinal cohort study

Background: Chronic musculoskeletal pain (CMP) is a common and debilitating symptom of Long COVID (LC), which shares several clinical features with Fibromyalgia Syndrome (FMS). Aims: This longitudinal study investigated whether the symptom overlap between LC-CMP and FMS persists over time, whether patterns differ according to pre-COVID CMP history, and the extent to which neuropathic pain features are present. Methods: Individuals with LC completed questionnaires assessing the symptom-based component of the 2010 American College of Rheumatology criteria for FMS and the presence of neuropathic

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