The Neuroinflammation, Pain, and Fatigue Lab is looking for women ages 18-55 who have symptoms of Chronic Fatigue Syndrome, ME/CFS, for a 1.5 hour brain imaging study. We will obtain magnetic resonance images, MRI, of your brain for one hour. The brain scans are non-invasive and do not involve exposure to radiation or injection of contrast agents. There will also be questionnaires. The purpose of the study is to investigate whether patients with chronic fatigue have increased brain temperature compared to healthy people. If interested, please contact Indonesia Jordan at 205-289-8748, or email ijordan@uab.edu with your name and phone number.