Pseudocyesis is older than Hippocrates, has affected subjects from seven to 79.
From the time.com
Last year she developed all the symptoms of pseudocyesis, including the same sharp decrease in the insulin required to control her diabetes that she had experienced in her real pregnancies.
From the time.com
At the 2007 trial of Lisa M. Montgomery he testified that Montgomery suffered from severe pseudocyesis disorder and that she was unable to appreciate the nature and quality of her acts.
From the en.wikipedia.org
More examples
False pregnancy: physiological state in which a woman exhibits symptoms of pregnancy but is not pregnant