Please Help, is this normal?

I was sexually abused as a teenager, and I feel like I’ve gotten past it. But, I have an overwhelming fear that something like that will happen to my 3 year old son. I find myself picking at little things people do with him-which are probably completely innocent, like play wrestling with my dad, my husband and FIL. And find myself being really scared that they have different/bad intentions. It’s getting to the point that I don’t trust ANYONE. Am I just super paranoid? What wrong with me?