Why scared ? It's been long known that tinnitus IS in the brain. Most recent research affirm that tinnitus starts ONLY if there is some kind of earing damage (even minimal, even normal age related) coupled with disregulation of the stress system (because of chronic stress for example, or anything else , even organic, that puts your person under extreme acute stress or chronic, even mild, stress). Even deafness alone is not enough.
Also, it is a credited theory that it's not just T that puts you under stress, but the inverse is also true, if you put yourself under excessive stress this can cause T or make it worse if you already have it (and I guess it's clear to anyone here). Don't get this study wrong, T is more linked to your attentional brain areas, that doesn't mean your whole brain is less at rest, but just that the area-source of your T is less connected to the rest-unconscious area and more connected with your conscious areas (and anything that enters your awarness does impair your performances, it could be T, or music, it's the same as long as you don't learn how NOT give it attention, as best as you can). So I suppose it's reasonable to tell that not only T(as a symptom) makes you more aware of your T itself, but also that before you were aware of your T your brain became progressively more attuned to the awareness areas and less to the default network (rest), this could be because of chronic stress, no rest-time, wrong use of your brain (too aware , too scared, too anxious, too much rumination, too sensible to critics, anything that kept you "always on alert"), the brain is a use it or lose it machine, train it to stay always on and that's what you will end up with. It is clear now how much T and mood-anxiety disorders overlap, so take care of yourself and your mental health and you will see improvements in your T (that's what I've seen myself, still T here but quiter every year that passes, started as severe for a couple of years, now mild since 2015).