Hi Margaret, I can only tell you what happend to me after my surgery. I also could hear or thought I was hearing right after surgery. I could talk on a cell phone and understand what was being said on my an ear. I did lose my hearing in my an ear a few weeks after I was home from the hospital. It was very hard to accept this and I was told the same thing, it usually does not come back. It slowly left. I don't know why. My doctor told me after my surgery that he made it 80% through my surgery when my hearing was lost, but even after I came home I knew I could still hear a little. It was hard, but I could hear and make out the words, But that isn't what happened. After the hearing test it was evident that I was hearing from my good ear. I do hope your's comes back. I just wanted to let you know my experience and what my outcome was. I will be thinking of you, BB