It could be 'Do I Love You (Yes I Do) by Frank Wilson.
It's a Northern Soul classic, so a fast tempo if that helps.
Trivia alert - it's one of the most expensive 7" records ever released - last copy sold went for
It was the final record ever played at the Wigan Casino - after DJ Russ Winstanley played the usual 'Three Before Eight' - the same three classics were always played at 8:00 a.m. - the end of the All-Nighters - the crowd refused to leave, so he stuck 'Do I Love You' on - making it the final song.
Although vinyl singles are worth a fortune, you can get the song on download, or any of a number of Northern Soul collections on CD.