The book "Misdiagnosis and Dual Diagnoses" came out in 2005, a 2nd edition came out a few years after this thread began:
Misdiagnosis and Dual Diagnoses of Gifted Children and Adults: ADHD, Bipolar, OCD, Asperger's, Depression, and Other Disorders (2nd edition), authored by James T Webb, Edward E Amend, Paul Beljan (2016)
Originally Posted by book description
Gifted children and adults are frequently misdiagnosed, particularly those who are twice-exceptional (2e).
Here is a link to Dr. Webb discussing Misdiagnosis and Dual Diagnoses
https://videos.med.wisc.edu/videos/32540 (2011)

Evidently, it can be important to have a psychologist or professional who is familiar with gifted.
The two lists above are courtesy of Hoagies Gifted Education Page.
Here is a list maintained courtesy of SENG (Supporting Emotional Needs of the Gifted).

This also may be of interest - Counseling Gifted Adults - A Case Study, by Paula Prober