After posting the above excerpt of "Doctor Feel-Good" I spent a good deal of time searching the web for the lyrics. I never succeeded, but I was able to find out this much: It was written by Willie Lee "Piano Red" Perryman (1911-85), recorded by him in 1961 and published as a single on the Okeh label (#7144). It became a big hit so that Perryman subsequently adopted "Dr. Feelgood" as his stage name, and when he brought out an album in 1962, it was called "Doctor Feelgood and the Interns." Fascinating, huh?

Perhaps someone with more skill or determination than I will continue the search. I'm giving up.