https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3719451/
Pulsatile tinnitus is usually unilateral, unless the underlying vascular pathology is bilateral.
A disorder known as "somatosensory pulsatile tinnitus" has been discussed. This is bilateral tinnitus with no vascular cause.
In case an individual loses hearing in only one
ear, the whistling sounds will be heard in that particular
ear hence result in
pulsatile tinnitus in that
ear only. This is totally different from and independent of continuous tinnitus which often results from damage to the cochlea and/or hearing nerve.
While with regular
tinnitus the causes can range from
ear infections and medication to eardrum ruptures and exposure to loud noise, the cause behind
pulsatile tinnitus is usually due to abnormal blood flow. So pulsatile tinnitus heard in both ears follows different pathology than regular tinnitus being heard in both ears.
If, due to infection, inflammation or eustachian tube dysfunction, fluid accumulates behind the middle ear then pulsating
tinnitus may result.
What tests have you had done/ Any complete bloodwork?