With my oldest brother, he almost died in birth somehow due to lack of oxygen, and my mother almost died with him. He was autistic.
My next brother was not too complicated. He was not autistic.
My mother when she got pregnant with me, because of age and what happened with the oldest, was told to abort but didn't. It was a difficult pregnancy involving pre-eclampsia and not being able to move for the last trimester and I think a little before it. I also moved in the womb differently than she was used to with babies. I was induced at what seems to have been the earliest opportunity where it would not be seen as causing damage to me. And I am autistic. (I was small, definitely not hard to actually get out the hole compared to my brothers, and was born before any of the hospital people knew I'd arrived.)
But I don't think that we're autistic because of difficult births, because it runs in our family as well, our father is autistic, as is our uncle on the other side, and many others further back. I think my brother's coordination problems are more severe than the rest of us because of his difficult birth though. (I had some problems with motor skills but not the same kind he did -- he was all-around clumsy, whereas I had trouble with motor skills in a bit more higher-up way, like motor planning and such, and with the difference between voluntary and automatic movement starting out wider than usual and getting more and more wide as time went on.)
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"In my world it's a place of patterns and feel. In my world it's a haven for what is real. It's my world, nobody can steal it, but people like me, we live in the shadows." -Donna Williams