Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that the creaking sound in left ear that appears on and off and more while talking or moving the jaw seems to be due to disorders associated with the jaw joint also known as Temporomandibular Joint Disorder commonly referred to as TMJ or TMD..
It can occur due to causes like
-Teeth grinding or
Bruxism.
-Teeth clenching habit.
-Jaw trauma leading to displacement of the articular disc that is present as a soft cushion between the bony ends of the jaw joint..
-Arthritic changes in the jaw joint..
I would suggest you to consult an Oral Physician or an Oral Surgeon and get evaluated and a thorough clinical evaluation and investigations like
Orthopantomogram can help in diagnosis and treatment can be done accordingly..
You can be advised treatments like
Physiotherapy, mouth guards tthat has to be placed at night along with it anti
anxiety medication to control
stress and anxiety that can cause teeth clenching.
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.