I get the same way! Sometimes it feels like I'm in some sort of vacuum, like I'm not really here. I'm just an observer of what's going on around me. Even when I'm outside in an open area it feels like I'm enclosed inside of a vacuum. When I get like that I can get claustrophobic even in the middle of the dessert! Wide open space but it still feels like I'm stuck inside. I have to be careful not to dwell on it when I get like that. I have never told anyone about that feeling either. I hope you are feeling better