I've had constant dizziness for several months now. I had catscans done, xrays, blood tests etc. all the doctor can come up with is Vertigo. I am at a loss also because now that I've x'd out all the possibilities I still have an elevated white blood cell count. Try to go to an ENT (ear, nose and throat) doctor, if anything you can rule out that it may or may not be an inner ear infection.
i don't have constant dizziness like you are having, but i am having episodes of extreme lightheadedness several times a day. i feel for you, i know how this is affecting me, i am starting to get anxiety from the whole thing . my thoughts are with you tino