According to Rolling Stone, the lyrics for “Comfortably Numb” came from Roger Waters’ experience when he was injected with tranquilizers for stomach cramps by a doctor prior to playing a Pink Floyd show in Philadelphia on the Pink Floyd 1977 In The Flesh tour. “Comfortably Numb” is considered on of Pink Floyd’s finest songs.
“Comfortably Numb” (working title The Doctor) first appeared on the 1979 double album The Wall. It was also released as a single in the same year with “Hey You” as the b-side. “Comfortably Numb” is one of only three songs on the album for which writing credits are shared between Roger Waters and David Gilmour. The melody and most of the music was written by Gilmour while Waters contributed the lyrics and some additional notes.
“Comfortably Numb” in 2004, the song was ranked number 314 on Rolling Stone’s list of the 500 Greatest Songs of All Time. In 2005, “Comfortably Numb” was the last song ever to be performed by Waters, Gilmour, Wright and Mason together.