This is from the Live version featured on Enter The Vaselines. This version has an 
alternate chorus from the studio recording.
Verse

G
This is a story and
E
I hope it don't bore ya
C                    G
Bout the day I was a horse
G
It's been a long time coming
E
and I've been a mourning
C                   G
So I changed into a horse

Chorus

D                    G
and we galloped into the night
D                    G
and everything was alright
D                    G
We galloped into the night
C               G
The day I was a horse
C               G
Was very nice of course.

Verse 2

There was this horse
with a big fat mouth
that swallowed all my friends
so I went in to rescue them
and we started over again

Chorus

There's a bass solo over the chord progression from  the verses, then the drummer messes 
up and they start the song over before playing the next part. (listed as "The Day I Was 
A Horse (Again))

Chorus

Verse 3
well it got kinda freaky
I was fine I was cheeky
I was rolling round again
I felt real strange
wanted everything to change
hoping this nightmare would end.