Am I Overreacting?

So I've dealt with a lot of sexual abuse as a child and growing up, and now as an adult f 26 (recently into therapy, don't wait as long as I did lol) I sometimes perceive what could be normal as not normal. I'm quick to judge certain types of men based off how I feel around them as predators or someone I should stay away from. An example: a dad walking his kid home from school one on one - instant alarm bells in my mind but is totally normal most places. Do other abuse survivors experience this and is this normal or am I constantly overeacting when I feel "off" about someone? Some guys I'm around, no problem, no issues, others, instantly thrown off for some reason. And this changes with what seems like the wind too. Some guys I'm comfortable around I'll occasionally feel off about and vise versa.