you can't stay in one place for long without moving to a different pose
something on your body itches (your nose?)
manual swallowing
I've always been someone who can hear electronics - when CRTs are popular, I'd know if one was in the upcoming room while I was still in the hallway. At some point, I realized that I heard all sorts of minor sounds just by existing in my apartment, and that tinnitus isn't much different than that. Helped me chill out about the whole scenario.
My mom taught me "lean into the good, and you'll feel more of the good; lean into the bad, and you'll feel more of the bad." That's certainly been my experience with tinnitus. Letting yourself panic and gloom about it is the worst part of having it. If you don't assign valence to it (don't let it be good or bad, just a thing you experience), it loses its power to drive you mad.
(I check sodium on the Nutrition Facts of packaged food (it's usually high), don't touch even decaf, don't touch alcohol, and try to minimize the bad kind of stress that has no constructive solutions.)
I can remember being about five or six years old and hearing the Simon and Garfunkel song, "The Sound of Silence" and I thought my tinnitus was what they were talking about, and that everybody had it. I cannot remember a time when I didn't have it. Since it has always been with me, it doesn't really bother me. I feel bad for people who get it later in life and for whom it is a very large annoyance.