Hi there.
With due respect to LL, I'm pretty sure you got what I got, tinnitus, something the Wikipedia article defines as follows:
Tinnitus (pron.: /tɪˈnaɪtəs/ or /ˈtɪnɪtəs/; from the Latin word tinnītus meaning "ringing") is the perception of sound within the human ear in the absence of corresponding external sound. Tinnitus is not a disease, but a condition that can result from a wide range of underlying causes . . . .
Nor is it a surprise that anyone with RSD/CRPS would get it. Take a look at
Stress and tinnitus-from bedside to bench and back, Mazurek B, Haupt H, Olze H, Szczepek AJ,
Front Syst Neurosci. 2012; 6:47 - Epub 2012 Jun 11.
But, where the Wikipedia completely article falls short is in its treatment of the biomedical origins of the condition, it fails to even consider that it might be a "
thalamocortical dysrhythmia," which is a hoot where the immediately preceding link goes to a Wikipedia article under that name, listing tinnitus as one of the conditions in the group! See, e.g.,
Thalamocortical dysrhythmia: A neurological and neuropsychiatric syndrome characterized by magnetoencephalography, Llinás RR, Ribary U, Jeanmonod D, Kronberg E, Mitra PP,
Proc Natl Acad Sci U S A. 1999 Dec 21;96(26):15222-7; AND
Imaging of thalamocortical dysrhythmia in neuropsychiatry, Schulman JJ, Cancro R, Lowe S, Lu F, Walton KD, Llinás RR,
Front Hum Neurosci. 2011;5:69.. Epub 2011 Jul 29.
And as an added bonus, the same group at NYU - under the leadership of the esteemed
Rodolfo Llinás, M.D., Ph.D. - went on on eleven years later to establish that
RSD/CRPS was also a disease of thalamacortical dysrythmia! Abnormal thalamocortical activity in patients with Complex Regional Pain Syndrome (CRPS) type I, Walton KD, Dubois M, Llinás RR,
Pain 2010 Jul;150(1):41-51.
A discovery - by the way - that was much to the embarrassment/consternation of the CRPS community who never saw it coming, simply because they remained naive of developments in the EEG literature.
Thalamocortical dysrhythmia and chronic pain, Jones EG,
Pain 2010 Jul; 150(1):4-5. Seriously, check out the second sentence of the first paragraph of this editorial in the premier journal of pain medicine:
It is a perspective that may have escaped the notice of many pain scientists and sensory physiologists.
Sadly, it remains a perspective that has been left untouched in the RSD/CRPS literature since then, probably because it's inconsistent with the skill sets of the CRPS research community, with its predominantly biomolecular orientation. (Enough said and citations available upon request.)
But back to the experience of tinnitus itself, I had occasionally experienced mild ringing in my ears all my life, but it became pronounced when I began to use tDCS ("anodal" or positive) stimulation on my left motor cortex, but I thought it a small price to pay for relief from the "sympathetic dysythmia" of CRPS, in my case edema around my feet and ankles and significant chest pain that was finally established as "myocardial small vessel constriction." But then, going on a couple of weeks ago, my tDCS device failed and for reasons I hope to establish when I see him tomorrow morning,
my doctor has yet to procure a replacement device. In any event, my CRPS has been in free-fall ever since and beginning a couple of days ago, the tinnitus took on a whole new life,
with tracks of Hail to the Chief and the Battle Hymn of the Republic!!! 
But, oddly enough, tDCS may in fact be the appropriate remedy for our tinnitus, but this time the target would be the
auditory cortex, using an application referred to as "left temporal area (LTA) and bifrontal tDCS." See, e.g.,
Transcranial direct current stimulation in tinnitus patients: a systemic review and meta-analysis, Song JJ, Vanneste S, Van de Heyning P, De Ridder D,
ScientificWorldJournal Epub 2012 Oct 17.
DEBBIE: I recall you saying that you tried it and it didn't work. Did you use it with Seromycin? The reason I ask is that I too had problems with tDCS on the first go round, but had nothing but good results after I (1) added a low dose of Seromycin (cycloSERINE) to my medication list and (2) stopped using detromethorphan (DM): turns out that DM (taken as as an NDMA-antagonist) inhibits the brain plasticity required for tDCS to be successful, while Seromycin works the other way around.
Finally, and for what it's worth, it's my understanding that a "
music therapy" could be under development for tinnitus, having already shown promise in small trials, arising directly from the understanding of the condition as a thalamocortical dysrhythmia. If this is of any interest, check out
Music-induced cortical plasticity and lateral inhibition in the human auditory cortex as foundations for tonal tinnitus treatment, Pantev C, Okamoto H, Teismann H,
Front Syst Neurosci. Epub 2012 Jun 27.
I apologize for going on so, but tinnitus is definitely your guy. Hope this is of some use. And feel better.
Mike