Tinnitus
Had this for 6 months in 2015!
Took forever to go!
Used heavy-duty cortisone nasal sprays and oral cortisone.
Had ears cleaned, took all anti-biotic and and anti-mycotic drops and sprays.
Be patient you'll be ok but it will take at least 6 months!!!
Try to see an osteopath or chiropractor which may help by checking your jaw tension.
It could be dental so get your occlsusion checked by an orthodentist.
See another ORL (ENT) specialist.
One other thing: could be reflux related to food intolerances which may be the cause.
Try cutting out dairy produce and see if it works.
If not go see an immunoallergist to test for:
DAO, Tg, T3, T4, TSH, IgA, IgE.
Remember the cause of this is stress and it is psychosomatic.