Not even a little bit.
I don’t like lying.
The question itself is disingenuous. The asker knows that the only socially-acceptable answer an effusive expression that she is in fact missed. She's seeking validation, not asking a genuine question. The most flattering interpretation is that she's just making conversation. But just as not everyone who asks "How are you?" needs a full and complete recitation of the facts, I don't think that politeness dictates you answer with a large, well-rounded response to this particular question.