I can't speak a lot of the time, it has never been my best skill, I learnt to speak early compared to other children, but I had hearing loss ever since I can remember. I think in images, function a lot like a deaf person (I'm hard of hearing), and when I'm not in my best state, tired after the whole day etc., sound words don't come to my mind. It's not that I don't think verbally, but they're pictograms or written words... or lots of other ways to convey information.
A few of my family members learnt to speak around the age of 5, but autism wasn't a "thing" but then, and they never cared to get diagnosed. Now they're successful IT professionals.
I have sensory issues with bright lights and loud sounds, and probably misophonia (I relate so much to hating the sound of phones and small speakers). But I'm not sure how much of an issue it really is - I can't stand traffic and shopping malls. These aren't necessary elements of life. The worse part is photosensitive epilepsy that can be triggered by sunny and windy weather - but it got better as I got more rest, sleep and regular meals and less traffic.
I could go on and on about sensory issues - most of them can be avoided if doing things the way you prefer, not what everyone does. Let's say, you wear shoes you find comfortable, not those that everyone thinks are trendy. You don't like harsh soaps that have a smell - don't use them. I also stim all the time and don't make a whole lot of eye contact.
I could hear wifi from the routers,
I live in headphones...
As for severity... I definitely have more pronounced sensory issues than many people who get diagnosed nowadays and whose problems are often secondary to autism, not directly resulting from it. In some parts of the world sensory issues in adults are ASD2, based on the need for accommodations at work or in daily life, in other parts of the world it's ASD1 if you don't need a legal guardian. In my part of the world and diagnostic criteria that's just ASD or Asperger's syndrome. I also have good social skills, pretty much the only symptom from the social category that I have is not making eye contact and my mild face blindness.
Probably for most of us in the non-ASD3 group some aspects of autism are mild and we would self-assess them as ASD1, but we would put other aspects at ASD2 or even 3, debilitating, disabling. Autistics tend to have uneven skills. To be very good at some things and terrible at other things. So if you asked us about the severity of our autism, you'd get mostly responses that it's mixed: in one area no difficulties, perhaps not fulfilling the diagnostic criteria at all, in other areas mild, in others disabling.
push me out of their group. So on my own I do well.
I find groups overwhelming or distracting.
yet I have a higher than average I.Q.
I have a very high IQ *brags* The exact score I got was "above range" in a test that ended on 130 (so potentially not super high). I don't care about a more accurate result and I feel like (see above) I have an uneven skill set and I'm average at some tasks and outstanding at others. I'm also 2E (twice exceptional) - gifted, but with some disabilities at the same time.