I have written previously about people with whom I come in contact on a daily basis who are whiny and self-absorbed. I was delighted to see that THE URBAN DICTIONARY has a term for the diagnosis of those who are so afflicted:
People who have trouble talking about anyone but themselves for any length of time. The "enough about me, what do you think of me" syndrome.
EXAMPLE: I like hanging out with Andrea, but her MeDD (Me-D-D) is so annoying. She'll ask me a question, but then jumps in with something about herself.