Could ear pain be a part of brain mets?

I have a ear pain and jaw pain from time to time.I have had this on and off due to the way I hold my teeth so tight at night.Or when stressed out.But could it also be part of brain mets.I will see my onc in a few weeks so will ask him.I am due also for a pet scan soon.Worry worry worry now over any new pain that was something I never did before this.