It is a disability with me. I look at a page and before I read anything my eye goes straight to whatever errors are on the page. I can’t read it until I mentally correct them.
You probably learned to read during the same era I did. You know, back when the schools actually taught the language as it's fundamentally constructed.
I have the same affliction as you do. Simple errors in spelling and punctuation have stuck out like a sore thumb to me since I was a kid in elementary school.