For the record my name is Dianna. Dee-Dee is my nickname.
I get people asking me all the time if they should call me Dianna or Dee-Dee. I answer to both names, but I usually refer to myself as Dianna.
When I was born my family thought Dianna was way too grown up of a name for a little girl so they called me Dee-Dee. When I was about 5 or 6 years old I decided I wanted to be more grown up and I insisted that people call me Dianna. Now I don't care what people call me (as long as its nice).
Here is a list of nicknames my family calls me.