I think it is a bit of gaslighting and a reason why it's doubly frustrating trying to seek medical advice for the condition.
For one, doctors can't really cure it since they don't truly understand it.
For two, Jasterblowhard's theory of "just deal with it" and "anyone bothered by tinnitus is a freeloader and wants a check for disability" is still very much ingrained.
For three, it's really hard to say whether my OCD is causative, nor is it really fair to say, "hey, by the way, you're going to hear this loud fucking intrusive phantom sound for the rest of your life, oh by the way -- NO ONE ELSE CAN HEAR IT, BUT EVERYONE WILL TELL YOU IT'S FINE AND TO JUST GET USED TO IT." Of course, those with OCD will try to problem-solve and find the cause. Our brains think in a "hey caveman brain, if you have a health problem that you can't explain, perhaps try to find the cause so that perhaps it can be cured" type of way that I imagine was very useful and part of why our genes have been passed down for millennia until us.
Double with the fact that things like antibiotics are in the grand scheme of human existence, like the most recent .01% of it, and the insane technological advances in medical know-how, it's fairly reasonable for the average pleb to be like, "hey, they're shoving nanobots up people's butts, maybe there is a cure for this if I just explain to the right doctor the right way..."
And so we OCD folks are stuck in permanent rumination when we can't ignore it.
Frankly, I just think health anxiety is inherent in a condition like tinnitus. If you AREN'T bothered by a loud, intrusive, almost magic-like sound, there is probably something wrong with you.