Pain and soreness in joints along with brain fog also need fibromyalgia
workup. the defining criteria according to the guidelines
laid are, apart from pain and fatigue, about 11 trigger points, sleep disturbance, morning stiffness, headaches, irritable bowel syndrome, numbness or tingling of extremities, restless leg syndrome, temperature sensitivity and cognitive and memory problems. various tests and tender points in back of neck, shoulders, sternum, lower back etc.