I'm quite interested in the auto-immune link
I doubt there is a link in your case - but that's just my personal and non-medical opinion; I certainly could be wrong...
But since we are on the topic of autoimmune diseases, I will share my own little story and what I know about it. Back in the summer of 2011, I developed a sudden redness and irritation in my left eye (see photo below). By sudden, I mean "over the span of about 45 minutes". It certainly wasn't the hay-fever-like pinky eye that some people get. And in any event, it was off season in terms of allergies (ie. late summer). I went to the eye doctor at the university hospital for a same-day consultation. The doctor's first thoughts were that I had an infection - I was a bit on the fence about that one since infections typically take 24/48 hours to develop; not 45 minutes. Next day, no improvement after applying topical antibiotics. After a new same-day visit at another clinic, I got the diagnosis: unexplained auto-inflammatory incident of the left eye. And a course of topical steriods. That worked.
Everything was fine for several months... and then I had another similar incident, this time in my right eye. So another visit at the eye clinic - and another round of topical steriods (which are not that good for eyes). After yet another incident several months later, I decided to see my GP in order to seek out a specialist who could establish the root cause of this. With her infinite wisdom of medicine, my GP recommended seeing an allergy specialist (ie. an ENT or dermatologist) for the standard skin prick test. Something which would be totally useless in my case.
Fast forward two years, as well as two stem cell treatments later, and the flare-ups in my eyes have completely ceased; including the daily redness that I would get for about an hour or so after a shower. All gone. Autoimmune diseases are problematic in the sense that they typically do not resolve over time. They either stay the same or they will get worse. And since the body is attacking its own tissue, that
will lead to some problems later on. Now, autoimmune diseases and tinnitus are usually not related, but here is one instance where they were:
In the specific case where hearing loss is caused by autoimmune disease, stem cell therapy most likely will produce a very good outcome in terms of reversing the hearing loss and any associated tinnitus. In my case, I did my stem cell therapy for other reasons; the disappearance of my autoimmune disorder was just a helpful, but predictable biproduct of the intervention. Stem cells are excellent for curing autoimmune disorders.
And
this - the above, that is - is the kind of information you will not get during your consulation with the average GP "down the block".