You deserve a big bear hug!
I read your post, and I was amazed because I could have written it. I am on exactly the same meds, same dose, AND I have recently been diagnosed with Meniere's. For me it is the right ear....well actually both but my balance issue and hearing loss is on the right side. I never even heard of Meniere's until I had a three day dizzy spell where I couldn't get out of bed. Every day can be a challenge. I am hopeful the new meds with help.