Determination of Metabolomic Profile Differences in Possible Sarcopenia Accompanying Fibromyalgia Syndrome in Women

The goal of this observational study is to determine the serum metabolome profile differences in the presence of possible sarcopenia in patients with fibromyalgia and to compare them with healthy individuals. In this way, it is aimed to contribute to the knowledge about the pathophysiology, diagnosis and treatment of these diseases.The main questions it aims to answer are: * Is there a difference in blood metabolite levels and metabolic pathways in fibromyalgia syndrome and possible sarcopenia accompanying fibromyalgia syndrome? * Based on these identified differences, can biomarkers be determined for these diseases?