Hi and Welcome.
It's important to see a doctor to be certain what's going on. Could it be sinus related at all? Just a thought. But defintely consult with your doc and keep in touch with us with an update and/or others may have some thoughts to share with you, too!
The last time I visited the doc was one year back. And he kicked me out.
To add more I don't smoke and don't have sinus problem
Do you have any sleep issues? Just a thought .. since sleep, breathing, and ENT all go together .. if so, you can try Dr. Park's Expert forum on sleep disorders.