I guess your idiolectal pronunciations are the first ones mentioned, right?
Any ideas about where your idiolect could hail from? Did you or your family originally come from somewhere else, or did you acquire your "idiosyncrasies" from somewhere else (media, education, etc.)?
I probably acquired those differences due to some combination of education, media, and in general having been raised without much of the more extensive contact that might have moved my idiolect closer to the norm. It's also possible my parents had something to do with it--my mother lived in Seattle for a significant portion of her life, and my father was born in the northern part of New Jersey--but I'm not sure about any specifics.