If you think self-diagnosing is wrong or bad then I 1000% don’t care about a single word you have to say. I don’t care if your being polite or just “trying to help”, don’t fucking talk to me, don’t breath my air.
And if you think that nobody hates people for self-diagnosing then you are objectively wrong and a complete asshole and you can go get pooped on by birds for all eternity.