Hi Helen
Welcome to the forum
Sorry to hear you've had such a bad experience with your GP, it's quite common. Many people with autism have jobs, children, boyfriends, degrees and all sorts of other things so this is nonsense. The GP seems to have a very outdated view of what autism is and needs educating.
If you don't mind sharing, what are the specific difficulties you're having that might relate to Aspergers, and how did you present this to your GP? You have a right to an assessment (though you might have to wait a while depending on the waiting list in your area) so it would be worth going back armed with more information.
My GP was fine, he didn't say much and referred me but I did basically go in there and tell him to refer me. He asked why and I gave him a concise list of my issues and he agreed straight away.
It is from what I've heard very difficult to get a diagnosis as a female due to lack of awareness of how it presents in women. Perhaps you could research specialists in your area and request to be referred to one of them, someone with specific expertise in this area, if you can find one.
I'm going private and have my assessment on Wednesday, as I was told the waiting list was well over a year and I feel like my life is on hold until I find out for sure. I'm lucky to be able to just about afford the private fees though. I know I'm seeing someone who knows their stuff and they are familiar because I can watch videos on YouTube of them, also my partner was diagnosed by the same person so I'm feeling a lot more relaxed about the whole thing than I might otherwise have. Not that I'm actually relaxed though haha, this is bringing all kinds of stuff up for me, like it does with most people I guess.
Good luck and don't let the GP put you off pursuing an assessment.
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Your neurodiverse (Aspie) score: 134 of 200
Your neurotypical (non-autistic) score: 79 of 200
You are very likely neurodiverse (Aspie)
Diagnosed with Asperger Syndrome 15/06/2016