Goin' Down Slow lyrics

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