A Neurologist, Neuropsychologist, and psychologist are the only ones that I am aware of who can confirm a diagnosis of Somatization Disorder. You have to be evaluated over a period of time and have the symptoms for long periods of time. A Neurologist will order an ECG and MRI of your brain. If your results come back normal, you're usually sent to a Neuropsychologist to be tested and evaluated and have a confirmed diagnosis.