"My boss is always interrupting me with questions, and the office is very noisy. There's no easy fix for either of those external things, so you're lucky that all you have to deal with is internal ADHD and tinnitus!" /s
But you still have to deal with those internal issues in a noisy distracting office! Being interrupted more by other people doesn't make it easier to manage internal struggles, it is a strictly additive difficulty.
Point is, external interruptions are trivial to deal with compared to internal struggles. You can wear ANC headphones in the office and negotiate focus time with your boss. You can change your boss, or your job, or restructure your work around interruptions. Point is, you have options that are sure to work, and tend to not require much upkeep; many are just "fire and forget" fixes.
That's almost never the case with internal struggles. You can't negotiate your ADHD away. There's no mental "ANC headphones" equivalent to shut the bees buzzing in your head up. You're lucky if the problem is something that responds to pharmacotherapy. That means there's actually something you can do to fix it that has even a snowball's chance in hell of working.
I really think "trivial" is massive hyperbole here. Like most people commenting here, I have deep struggles with my own mind, I relate extremely strongly to all the things people are saying here about this.
But things like negotiating across a power imbalance, finding and switching managers, teams, groups, switching jobs entirely... these are not trivial things! These are also extremely stressful things for which I don't think the word "trivial" gets anywhere near being an appropriate word choice.
