"Too Much Love Will Kill You" was composed by Brian May, Frank Musker and Elizabeth Lamers sometime between recording sessions of A Kind Of Magic and The Miracle. It appears to have been originally intended for Mercury to sing, as he recorded the finished version of the song during that period.
However, there were some problems with the companies representing publishing rights for Musker and Lamers, and the song…
I'm just the pieces of the man I used to be
Too many bitter tears are raining down on me
I'm far away from home
And I've been facing this alone