I was playing in this tuning today and what I was playing started to sound 
remarkably close to this song.
I'm playing on an acoustic and it sounds pretty close but it may need a little 
work.. so here it is.
Also, feel free to contact me if you have any questions and I'll try to help!

Tuning: Db Ab Db Ab Db Db

e -> Down 1.5 steps to db
B -> Up 1 step to Db
G -> Up 1/2 step to Ab
D -> Down 1/2 step to Db
A -> Down 1/2 step to Ab
E -> Down 1.5 steps to Db

Chords (I don't know the actual names, sorry)

C#: 057000 
F#: 550000 
Bb: 900000 or 9120000 (I prefer the second one)

A lot of this song is played primarily on the bass strings.
_____________________________________________________________

Intro:

C# F# x2

C#
Your words they make just a whisper

F#
Your face is so unclear

C#
I try to pay attention

F#
And the words just disappear

Chorus:

Bb                              F#  
Cuz it's always raining in my head

Bb                                   F#
Forget all the things i should have said

C# F# x1

C#
So i speak to you in riddles

F#
Cuz my words get in my way

C#
I smoke the whole thing to my head

F#
And feel it wash away

C#
Cuz i can't take anymore of this

F#
I wanna come apart

C#
And dig myself a little hole

F#
Inside your precious heart

Bb                             F#
Cuz it's always raining in my head

Bb                                   F#
Forget all the things i should have said

C#
I am nothing more than

F#
A little boy inside

C#
That cries out for attention

F#
Yet i always try to hide

C#
Cuz i talk to you like children

F#
Though i don't know how i feel

C#
But i know i'll do the right thing

F#
If the right thing is revealed

Bb                            F#
Cuz its always raining in my head

Bb                                   F#
Forget all the things i should have said

End on Db