These lyrics are from the sheet music, which you can see at Indiana University:


LOVESICK BLUES*
Words and music by Irving Mills and Cliff Friend, ©1922.

I’m in love, I’m in love, I’m in love with a girl.
That’s what’s the matter with me.
I’m in love, I’m in love, with a beautiful girl,
But she don’t give a darn about me.
To make her love me I tried.
How I sighed and I cried,
But she just refused,
And ever since she’s gone away,
I’ve got those love-sick blues.

CHORUS: Got the feeling called the “Blue Hoos,”
Since my sweetie said “Good Bye.”
Seems I don’t know what to “Do-Hoo.”
All day long I sit and cry.
That last long day we spent alone,
I’m yearning for it yet.
She thrilled me, filled me, with a kind of lovin’.
I never will forget
The way she called me “sweet daddy.”
‘Twas just a beautiful dream.
I hate to think that it’s all over.
I lost my heart, it seems.
I got so used to her somehow,
But I’m nobody’s baby now.
Gee, it’s awful when you’re lonesome,
And get those lovesick blue-oo-oo-oo-oo’s.


* The copyright was registered under the title LOVESICK BLUES, which is also the title on page 1 of the sheet music. However, the title on the cover of the sheet music is I’VE GOT THE LOVE-SICK BLUES.

Wikipedia has an excellent article on the history of the song.