When I hear a lullaby song I start to get a headache and get mad why is that?

I don't want to alarm you, but I agree with space cowboy. I use to hear this song that my grandmother use to sing all the time and I found it disturbing. It use to frighten me and I didn't know why. It wasn't a bad song, but childhood memories (which were very bad) made that particular song sick to my stomach. It brought childhood memories that I had suppressed for so many years, which for some strange reason I ociated with the song.