Oral Surgeon:  -   It is your Joint Gynecologist:  -   It is P.M.S. or the Hormones. Neurologist:  -   It is an Impaired Neural Pathway. Nutritionist:  -   It is Junk Food. Podiatrist:  -   It is your Foot. Physical Therapist:  -   It is your Posture. Psychologist:  -   It is the Stress. E.N.T.:  -   It is the Ears, Septum or Turbinate. Allergist:  -   Chronic Allergies. Family Practitioner:  -   Frankly I don't know. General dentist:  -   Cavities can't do that. Neuromuscular Dentist:  -   It is your Occlusion, maybe some of the above too.