I have exactly this syndrome. About 10 days ago, I got off a ferry and I started to have this slight dizzy spell. It worsened a few days later as I began to have this bad flu, eg. bad cold, sore throat cough, but no headache.
After I got my flu sorted out by my family doc, the dizziness/imbalance feeling (basically feels like i am on a boat constantly). I went to see ENT specialist, she checked my ears, nose, eyes. She ruled out a possibility of a brain tumor. However she advise I could get an MRI checked if I am very concerned. She thinks there is a virus near my eardrum and it can only take time to get rid of it.
So any of you who experienced this can give me a reply or recommendation I would very appreicate it. I am 27 years old and I am freaked out about this!!!!!!