Doctors - diagnosis, confirmation...

Hi.

I haven't been diagnosed with depersonalisation disorder. But I've spent a long while reading symptoms and forums, ticking checklists etc, and it fits like nothing else ever has to what I'm feeling. I thought I've had so many different things before, but the way people describe things on these forums seems so so relatable. I don't know how to feel about that, it's so amazing but so scary.. but that's a discussion for another time...

So my question is what should I do next?
I have been to GPs before and felt stupid, and like I'm not worth their time (this is just for physical things alone). I have also read articles hearing how doctors know so little about this disorder etc. I also am aware that me coming in with my own diagnosis for what I think I have isn't likely to go down well with actual professional doctors who trained for years to diagnose people. so my questions...
1.) do I need to be diagnosed? I am aware that in order to get help I need diagnosis bla bla i could go on... but the crux of what i mean is: is it always necessary? I know there's not always treatment, so do I need to go just for the validation/confirmation that I have it? So I can tell people I have it and have been diagnosed? Has everyone on this forum been given a diagnosis, or do you feel it is ok to be without an official confirmation?
2.) I am also scared of the doctor's reaction - as stated before I've not had good experiences with them. I feel like I might get brushed off or mocked in some way. Has anyone experienced this? How did you approach seeing your GP about this? Were you taken seriously?
3.) Did you go in already with depersonalisation as a diagnosis in mind? Did you tell your doctor this? Did they take your diagnosis seriously?
4.) If they do take you seriously, do they then refer you to a mental health clinic. or...?


Please, any insight into this would be greatly appreciated. Go into all the detail, as much as you like! I know for me to step into anywhere, even up to my best friends, about anything that's seriously the matter with me is going to be a huge step for me. Any reassurance, insight and persuasion I can get is needed.

Thanks in advance.