mention a few critical responses on the song?
It  received positive critical reception.
Pain in My Heart
received positive critical reception.
who wrote the song pain in my heart Otis Redding what was the record label? Volt Records when was the  song released? 1962–1963
wiki:10768369
Pain in My Heart [SEP] Reception
"Pain in My Heart" received positive critical reception. In a retrospective review Bruce Eder of Allmusic gave the album 4 out of 5 stars, reckoning that the album "was practically a road map to Mick Jagger and any number of other would-be white soul shouters in the UK", and finding elements of hard rock in "Hey Hey Baby". He praised Redding's version of "You Send Me", considering it "the least stylized of any of his renditions of [Sam] Cooke's songs", but criticized Redding's restraint, compared to future recordings, and the "somewhat less than memorable" writing, except on "Security", "These Arms of Mine" and "That's What My Heart Needs".