Somatoform today will be looked back on in the same way that we look back on diagnoses of "hysteria", tinctures full of illicit substances and lobotomies. It is a meme that that commits multiple logical fallacies and is unfalsifiable. It's an embarrassment to the industry. Somatoform is not the null hypothesis. It's not the default state. It has a burden of proof that is seldom met. It is the most misdiagnosed condition in history. It usually violates Occam's razor grossly.