I'm not Going to tell you whether you have a disorder or not, but I am going to say that I personally think that people who -do- see the world in black and white are the people who have a problam. That's a child's way to see the world, and part or the reason children an be crule and terrible.
Also, it you have a problam with understanding specch, maybe you shouldn't ask people to speak louder, but slower.
As to Anhedonia, do what you like. There is nothing wrong with not liking what other people do. that's what online communities are for. More then that - it's a disorder only if it hurts your ability to live normally.
ADHD is a thing you just learn to live with. Try methods, see what wirks for you, and go with it.
You are not your diagnosis, you are a person. The sooner you would stop thinking of yourself a such, the better.
>>2 I think doctors should be trusted. people claiming to be diagnosed is something diffrent.