I never seen two adam's apples wow.
Then again I never noticed the existence of adam's apples until I was told about it.. then I started seeing it in almost everyone, but mostly online or tv, not really around here I think (although started noticing it more! maybe it's me).
But most people I know don't have it and I don't go out of town a lot so no wonder I didn't notice it I guess.
It also seems to be a bit more rare in Israel I think.. or maybe just around here.. or I don't go out enough still
My bf has quite a large adam's apple but it's just one.
Sometimes I tried finding mine (I can touch it pretty easily, make me feel over-conscious about it but it might be normal female size and I just don't know it as I never touched another girl's adam's apple O_o, but I can't see it unless I twist my head in funny ways.. then I might see a tiny tiny little.. thing.. not even sure if it's round or not (think it is).
One of my friends, Tal, has a round thingy vibrating almost always when he speaks but otherwise it's almost invisible, I think it might just be the voice box, he has a bass voice but I don't think he actually has an adam's apple, probably just the larynx is showing.
Are you sure it's not thyroid cancer that might be there? go get it looked at! it could be something medical? although google seems to find results of people saying it' not really;