I'm quite high functioning socially most of the time, but when I go over my "budget" of tolerance for sensory overload or social interaction (often the same thing really) then I can crash hard and end up locking myself in a room for days or weeks at a time. I have periods of moderately high functioning that can last months or even years but then get interrupted by meltdowns so severe that I quit a job or drop out of school, etc. I'd estimate I pass as NT at least 50% of the time in conversation, (though after my diagnosis 6 months ago I find I don't particularly care to try to pass anymore.)
so, when I'm allowed to budget my energy as I see fit and am not in an over stimming environment (especially noise, but noise and light both, as well as heat), I'm quite high functioning. if forced out of that I can shut down pretty quickly, though.
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KADI score: 114/130
Your Aspie score: 139 of 200
Your neurotypical (non-autistic) score: 54 of 200
Conversion Disorder, General/Social Anxiety Disorder, Major Depression