Lyrics of Going down slow

I've had my fun
If i never get well no more
Yes i've had my fun
Yes if i never get well no more
Well my health is failin' me
Oh yes i'm goin' down slow
Please write my mama
And tell her the shape i'm in
Please write my mama
And tell her the shape i'm in
Don't call no doctor
'cause the doctor just can't do no good
Don't call no doctor
'cause the doctor just can't do no good
If my own fault people
I just did not do the things i should