I have noticed in the past that whenever i am not in my usual setting or something has maybe changed in my life when I fall asleep and wake i can have an almost derealizatuon or something close to that feeling. For example if i travel i wake and it can almost form a panic attack of the feeling like "is this me" "how did this happen" type feeling. With me getting married im concerned that may happen upon waking. Has anyone ever had this happen or experience anything like it?