I've been wondering the same about myself.
My brother has been diagnosed as autistic, and his four children.
I think I've been exceptionally good at masking, I know as a child I would just copy others. I think I'm okay socially, as long as I have a script in mind.
I find eye contact painful, and have a few 'quirks' like lining things up but they have to be 'heavier' on the left, and I have to put left socks/shoes on first. I eat exactly the same breakfast and lunch every day, and rotate 4 dinners. Never get bored of that.
I am very sensitive with noises and smells; 'bad' noises and smells really affect me.
I look 15 years younger than my age (might catch up with me at some point?!) I'm rubbish at keeping friendships, it's such hard work, even though I want to, so I feel lonely a lot. I hate being watched, I feel on show a lot, like everyone can see I'm doing things wrong.
My DH is autistic and although he's very different to me, I feel I really understand him and have a lot of patience.
I don't know if I am autistic, or if my personality happens to have a few autistic traits, but I'm starting to feel like whatever it is, I need to start accepting myself and not try to 'get over' my anxieties anymore - I'm just me!