From what I can tell from the context, I believe that the narrator is admitting that he is nervous and had been nervous, but denies that he is crazy.
True.
true. Heart sounds or lubb dubb are created when the valves of the heart snap shut
true
true. Arteries have halves that allow for blood flow away form the heard but not toward the heart.
true
Other than the title, The Telltale Head being a play on The Telltale Heart the similarities lie in The Telltale Heart having the narrator, who is presumably the murderer, being haunted by the sound of the victim's beating heart. Bart, who is also the narrator of The Telltale Head briefly, is haunted by the voice of Jebidiah Springfield.
Peter West has written: 'The telltale heart'
Treasury Men in Action - 1950 The Case of the Telltale Heart 4-5 was released on: USA: 24 September 1953
Rude Awakening - 1998 Telltale Heart 3-13 was released on: USA: 14 September 2000 France: 5 May 2002 Hungary: 11 January 2009
True Heart was created in 1997.
Telltale Games's population is 90.
The Telltale Clue was created in 1954.
The duration of The Telltale Clue is 1800.0 seconds.
Telltale Games was created in 2004-06.
Telltale Texas Hold'em happened in 2005.
The duration of The Telltale Knife is 600.0 seconds.
True at Heart was created on 1991-08-04.