Is it normal that its hard for me to see through my own eyes (mentally)

I find it hard to see as me, if that makes any sense. Whenever I walk around I can only think as another person looking at me, sometimes my emotions are 75% based on my facial expressions, shouldn't it be the other way around?. Sometimes it causes me to be insecure. Even as Im writing this, I don't feel like Im the person writing it, the first thing I think of is how I would see it if I was a different person.
Is this normal? Am I just overthinking these feelings??