There are many barbecue foods that can tempt you to open your mouth wide: corn on the cob, beef ribs, turkey drumsticks, and burgers laden with all the fixings on a thick bun. These can all make you stretch your mouth wider than usual. And some of these foods might make you do more chewing than you’re used to.
Unfortunately, this can lead to jaw pain and, in some cases, migraines. If this type of activity is triggering your migraines, consider that TMJ might be a factor. Note: the connection between migraines and MSG is overstated. While you can’t rule it out as a cause right away, it should be your first suspect.