Sorry to note that you are still symptomatic despite several consultations.
'Off balance' and 'sinus'! - they point to Ear Nose Throat. The balancing mechanism is there in the inner ear
(The ear has outer, middle and inner parts). You ought to see ENT specialist
- they have special tests to assess vertigo
, hearing. sinuses
Ativan is anxiety
buster - it could also add to your symptoms. Zyrtec also can contribute. You seem to be intelligent - you correctly argue that such a long term problem is less likely to be serious...true indeed!
Treatment is easy. The problem is diagnosis! Sometimes, it takes time. One has to approach the right person! Be assured - your heart and brain are OK. Your symptoms are more of nuisance value than life style problem. Take things easy. Enjoy life. No cause for concern
God bless you