Do you feel everything is unreal 

Do you have a feeling everything is unreal. I am not talking about the marriage. But on my way driving to work today. It was very sunny. The weather was really good. But for some reason, I wasn't connected and I started noticing everything around me seems to have some kind of invisible thing between me and the world. It is hard to describe. I never felt this way before. So I parked my car and decided to walk out.. yes the feeling is still there. There is nothing wrong. I can see things clearly. I am not really sad or upset. But I really have a feeling of not being connected. As if I am seeing things but they I am watching it from a 3rd party point of view.

I am feeling very strange once I noticed this. Remembering the dream I had 2 days ago...comparing to that I actually felt more connected.

Does others have the same feeling? Am I losing my mind