Debating disclosing my diagnosis with work

I've been going back amd forth on if I should share my diagnosis with my manager and hr. (hr really just to cover my ass not for accommodations)

My last performance reviews was that I was doing great overall but the areas that needed improvement were all traits that are difficult for me with adhd. I also feel frustrated on days where it's hard for me to communicate clearly. I'll try speaking more slowly to not ramble or I end up leaving out too much detail and backtracking to repeat my thought when I see the person is confused.

At the same time, I also feel like it's too big of a risk to disclose. That it'll either be looked at as an excuse (rather than an explanation) or just bais my manager that I'm not reliable for high priority projects even though I've been handling them.

Does anyone have experiences to share about if you disclosed at work and the outcome?