Welcome to HealthcareMagic Public Forum
from your description it appear that you have some form of anxiety
disorder. You may also have some pathology related to teeth or jaw which cause spasm and anxiety is exacerbating your jaw spasm. Sometime anxiety disorder itself can present as jaw spasm, but it is better to rule out oral pathology.
As problem is prolonged or severe and leading to frequent interpersonal problems, then for assessment and treatment, you should visit specialist like psychiatrist
and dental surgeon together.
I hope this information has been both informative and helpful for you.
Wish you Good Health.
Dr. Ashish Mittal