Uncontrollable yawning, shortness of breath what could it be?

For about a week now I have been yawning to clear this heavy feeling on my chess. I yawn or take a deep breath every 2-4 Min and I only feel relieved when I do...Its worse when I lay down. Im 25 and never had health issues so im not sure what it could be. I read on google it could be axseity but shouldnt it go away by now?