yawning

Whenever I yawn or burp the inside of my head seems to convulse/rumble, what could be the cause of this? I don't understand this, could it be a brain tumor? I've tried using google and haven't found anything like this.

The first thing I notice before the seizure starts is uncontrollable yawning. I have searched the forum and not found anything about this. Does this happen to any of ya'll?