Gifted, Precocious, High Potentials, Exceptional, Mental Over-Efficiency, there are many nouns that try to name this complex phenomenon.
Highly gifted adults have a unique way of functioning. Even though they can rely on some of their innate strengths, this does not prevent them from regularly suffering from their differences.
I invite you to read the following articles which explain very clearly the issues that exceptional peopleĀ faceĀ :

Gifted People and their Problems by Francis Heylighen

Change your story, change your life by Stephanie Tolan
Conference presentation, (November 2005) – National Association of Gifted Children (NAGC)