there are 2 common possabilities.
if you are taking plaquenil, tintitis, (ringing in the ears), is listed as a side effect.
also i have found that swelling of my muscles is a problem for me.
the ear hearing system relies on many muscles to work properly.
i presume that this swelling is causing presurre on the ear drum and nerves, causing the tinitis.
i have actually spoken to medical staff about this possability, trying to get some research started.
the pressure possability would also explain the balance issue.
When you're stressed, You eat Ice cream, Cake, Chocolate & Sweets. Why? Because stressed spelled backwards is DESSERTS.