What Causes Slight Left Eye And Mouth Twitches?
Hemifacial spasm is the most probable diagnosis.
Detailed Answer:
Hello and thanks for using HCM.
I have read your question and understand your concerns.
Hemifacial spasm is an one-symptom condition, in other words, involuntary facial movement is the only symptom.
Other symptoms such difficulty closing eye, smiling are symptoms that may coexist with involuntary facial movements related to Bell's palsy or facial paralysis.
I don't see any problem with your face, by looking the picture you uploaded.
EMG is the test that is used to diagnose this condition, MRI is the imaging test of choice to exclude other diseases that may mimic Hemifacial spasm and to evaluate any facial nerve-artery conflict.
So, since you undergone these tests, in my opinion Hemifacial spasm is the most likely diagnosis.
Hope I helped you. I remain at your disposal for further questions and clarifications.
Best regards.
Thoracic herniated disc is not related to HFS.
Detailed Answer:
Welcome back.
The answer to your question is no, thoracic spine herniated disc disease is not related to Hemifacial spasm.
Hope I helped you. Wishing you good health.