Insane Beard,

Here in the US, "fiddle" does not exclusively mean "violin." It more or less means "viol," just as it originally seems to have done. So a double bass is a "bass fiddle." But by default, if the word is said alone, it usually just means "violin."

Fiddlesticks are not bows. (Tellingly, you never hear the word "fiddlestick" in the singular, yet rarely does a player use more than one bow at a time!) Fiddlesticks are a pair of sticks you use to hit the strings with. You can see a video of this, with Dewey Balfa, here