Earlier quoted context omitted.
That sounds similar to me. I was diagnosed unexpectedly at 38 and it changed my life. There is a good chance your internalised coping mechanisms are adding undue stress to your nervous system, making you tired and depressed, and ironically exacerbating the conditions for symptoms to become more disruptive (when you're tired, aren't eating properly, hyperfocusing too much and wearing yourself out, working late nights…
Did you become medicated? I was diagnosed but also have High Blood Pressure (HBP), genetics, and most of the meds we tested cause an uncomfortable rise in pressure that just wasn't worth it. My coping mechanisms are what I have left I suppose.
[0]: https://astralcodexten.substack.com/p/know-your-amphetamines