Thank you for asking. Let me tell you
1) Depression is not a cause of bruxism.
2) Bruxism and low serotonin levels doesn't cause eustachian tube dysfunction.
3) Not having nasal discharge is not related to eustachian tube dysfunction.
4) allergic bronchitis is not related to social loss of memory or talking!
Looking at the description of your complaint, I strongly suspect a problem of Anxiety Disorder or Illness Anxiety Disorder.
Next Steps
You must consult with a psychiatrist in person.
Health Tips
The Anxiety problem can be treated with suitable medication and treatment.