Unstable location of body pain may be caused by diabetic peripheral neuropathy, rheumatoid arthritis, lumbar intervertebral disc herniation, autonomic nerve disorder and other reasons. 1. Diabetic peripheral neuropathy: diabetic patients with long-term poor glycemic control due to oxidative stress and other factors lead to peripheral neuropathy, abnormal sensory function, so this symptom will appear. 2. Rheumatoid arthritis: due to autoimmune function abnormality, resulting in antibodies against self-tissues to launch an immune attack, involving the whole body joint tissues, joint dysfunction and wandering pain. 3. Lumbar disc herniation: After the lumbar disc herniation, the spinal nerve is compressed and stimulated, and the distal lower limb nerves innervated by the herniated disc are affected by sensory impairment, so this symptom will appear. 4. Autonomic disorder: due to the abnormal function of sympathetic and vagus nerves, resulting in panic, insomnia, shortness of breath, fatigue, generalized wandering pain and other symptoms. The irregular location of body pain may be related to a variety of factors, it is recommended to consult a doctor for a clear diagnosis and standardized treatment under the guidance of the doctor.