Not quite died, but close enough. Twice since you last knew me.
I told you before, it's a Time Lord thing. Think of it like taking off a jacket and putting on another, different looking one. But instead of a jacket, it's the body and mind.
You were getting married. You had on your wedding dress and everything. Your fiance was drugging your coffee with Huon particles to help the Racnoss from colonizing Earth, but the Huon particles reacted to your mental state and you were teleported into my TARDIS. On Christmas Eve.