swimming, falling, who knows the difference?

Haven't you seen me sleepwalking? 
Cause I've been holding your hand 
Haven't you noticed me drifting? 
Oh let me tell you, I am 

Tell me it's nothing 
Try to convince me 
That I'm not drowning 
Oh let me tell you, I am 

Please, please tell me you know 
I've got to let you go 
I can't help falling out of love with you 

Why am I feeling so guilty? 
Why am I holding my breath? 
Worried about everyone but me 
And I just keep losing myself 

Tell me it's nothing 
Try to convince me 
That I'm not drowning 
Oh let me tell you, I am 

Please, please tell me you know 
I've got to let you go 
I can't help falling out of love with you 

Won't, won't you read my mind? 
Don't you make me lie here 
And die here 

Please, please tell me you know 
I've got to let you go 
I can't help falling out of love with you 
With you 

Haven't you noticed? I'm sleepwalking