I will also stretch my neck out from side to side sometimes rubbing a ice pack on it. I don't know if it is just a distraction that I needed to cause relief or if it actually help, I don't care either way as long as the pain goes away! haha
As far as the toothache goes, The way it was explained to me if your tooth had an issue you would feel that pain or pressure all day every day until it was taken care of, if it comes and goes most times like clock work the same times every day then it is cluster.
But I am no doctor, I am just some guy having to much fun playing the cluster game.