Inclusion Criteria:  Being diagnosed with AS according to the Modified NewYork Criteria Visual Analogue Scale spinal pain score ≥ 3  Exclusion Criteria:  Diabetes mellitus, renal insufficiency, hypothyroidism Postherpetic neuralgia, spinal cord compression Being diagnosed as fibromyalgia in the last month or widespread pain indicating fibromyalgia Malignancy Pregnancy Severe cardiac disease In the last three months medical treatment leading to neuropathy (colchicine etc.) In the last three months drug use for the treatment of fibromyalgia, depression or anxiety