It helps a lot to go to the GP armed to the teeth with information, and screening test results. Even if they're just the free ones from online. TELL them what traits you have, in detail. Don't let them just "look" at you to see for themselves. That's just NOT possible in five to six minutes. What pisses me off about morons like that is that they KNOW it's not that simple.
They are brushing you off for some reason that has nothing to do with them truly believing you dont have Autism. It's either because you don't have insurance and can't pay the bill, or the insurance you do have probably won't cover it and you can't pay the bill, or they're too busy to be bothered, or they don't take your claim seriously. Whatever the reason, they ARE brushing you off. They'll just keep doing it unless you force the issue.
Hate to break it to you, but it is up to you to keep pushing until you find someone who will listen. Bug the hell out of them until you get results! When it comes to stuff like this, you HAVE to make a pain in the arse of yourself, toss out any inhibitions you have about irritating anyone, and just PUSH until you get what you need.
They don't care. You're just a file in the system they want to get off their desk and back into the file where they don't have to think about it anymore. Don't let them get away with it.
CALL that doctor back and ask who else you can see that will do the right things to give you a proper straight answer. Looking at and talking to you for six minutes and telling you you don't have Autism is NOT even a proper screening, much less an evaluation or diagnosis.
What they were really telling you is, "I don't see any reason to even screen you for Autism."
SHOVE 'EM HARD, or you'll never get what you need out of them. Do NOT let them intimidate you.
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I'm not likely to be around much longer. As before when I first signed up here years ago, I'm finding that after a long hiatus, and after only a few days back on here, I'm spending way too much time here again already. So I'm requesting my account be locked, banned or whatever. It's just time. Until then, well, I dunno...