Pinch Lyrics

My kidneys scrape my back
My lungs get hard and crack
My heart's trying to hide
Sandpaper on my insides

[ Lyrics from: http://www.lyricenter.com/e23053-acetone~pinch_lyrics.html ]
And this is not a joke
There's nothing in my mouth, but i feel like i'm gonna choke.
I tried to tell the doctor, but he just misunderstood
The way i'm feeling
And it ain't no good.