hi i had sudden hearing loss last July 2015, along with a terrible bout of vertigo. I have been to three ent doctors which included going to Univeristy of Michigan. I was told it was a virus. I m so much better than I was a year ago, however, I never got my hearing back and I get this sound in my ear like a rubber band noise. Not always sometimes it depends on certain movements of my head. What is causing this. No one seems to be able to help me.