I have had something similar in the past that was related to Lupus inflammation. Mine was the sound of my heart beating plus some vertigo - I think overall I had 3 episodes each of which was from 2-6 weeks in duration.
Other than some motion sickness meds (over the counter) the rheumy wasn't really able to do anything beyond the plaquenil and prednisone I was already taking.
Since this sounds like a new symptom for you, I would recommend a visit to your rheumy - perhaps there is something they can do that will help, esp. if they find your blood inflammation numbers are high. (My last episode was over 6 years ago, so maybe there are new treatments, too.)
Lynnwood, Lupus & Sjogren's Moderator, Dx: 2002DIAGNOSING LUPUS & HW's LUPUS 101
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