[Verse 1]
I pretend like I'm alright, I run fevers through the night
And she makes me sweat like hell
'Cause I swear she's bad for my health
Doctor, doctor, you've got to help me out
She's right behind you, hurry, turn around
Oh, my mistake, I guess I was just dreaming
So back to the matter at hand
But like I said, she's in my head
She's in my closet, she's under my bed
It's the lovesick crush from hell
And I swear she's bad for my health

[Chorus]
Bad for my health, bad for my health
And I swear she's bad for my health
Bad for my health, bad for my health
And I swear she's bad for my, my
Na na na na na na, ayo
Na na na na na na, ayo oh oh
Na na na na na na, ayo
Na na na na na na, ayo oh oh

[Verse 2]
I see things crawling on my walls, I need more than Tylenol
And my ego flew so tall, flying high, but now it falls
I swear the room is spinning, I'm beginning to get sick
I told you I'm in trouble, and my double vision's thick
Can you turn on a fan 'cause it's hotter than hell
And I swear she's bad for my health
[Chorus]
Bad for my health, bad for my health
And I swear she's bad for my health
Bad for my health, bad for my health
And I swear she's bad for my, my
Na na na na na na, ayo
Na na na na na na, ayo oh oh
Na na na na na na, ayo
Na na na na na na, ayo oh oh

[Chorus]
Bad for my health, bad for my health
And I swear she's bad for my health
Bad for my health, bad for my health
And I swear she's bad for my, my
Na na na na na na, ayo
Na na na na na na, ayo oh oh
Na na na na na na, ayo
Na na na na na na, ayo oh oh