I only had to see him for the referral, which he was already going to give me for social anxiety, so I don't think I'll have to see him again. I don't know what he wrote on my record though - I only saw social anxiety and social withdrawal before I left.
And as to the whole "telling the doctor your symptoms and letting them come to the conclusions" thing, I had done that with my counsellor. I talked about the things I was experiencing, and then a few sessions later said "I think I'm autistic, these are the criteria, don't you think this fits in with what I've been saying?".
But when it came to talking with the doctor, I panicked and only could think of a few symptoms to mention, and completely forgot to show him everything I had written down

He initially kept asking if I was depressed, and then if I was schizophrenic (not directly, but asking questions like "Do you ever think that thoughts are being taken out of or put into your head". I thought that it was interesting he jumped to that quite quickly.)