I believe that while the Syndrome remain in only one of the ears, it is possible to be happy yes.
I had the first crisis in 35 years, I believe caused by a phase of intense emotional stress. There followed 15 years of strong dizziness, sweating, low blood pressure, tingling, and finally, with the full menu. Up completely losing the hearing in the left ear. Only remains a clink in considerable level. Currently I have 67 years.
What I did was to try to develop my sense of balance via sports such as windsurfing, roller-skating in sydney, and pilates aimed to stimulate the body balance. And I'm going reasonably well, praying for it never to have my other ear, hit by this terrible disease. I eat well, healthy. I keep my weight within the normal range. I became a big fan of windsurfing and practice at least 3 times for 2 hours per week. When it is windy , all day. And I think that is what keeps me stable, happy, and resolved, without any stress.
I wish you all that life them smile.