It's very disorienting and makes me sick and dizzy. When I'm in a room I can't imagine what is outside of it. I feel like I'm in a box floating in space. This is especially true right now because it's dark outside. I feel like this room is the only thing that exists even though I KNOW that outside there are roads are cars I just don't feel it and it's really scary and makes me feel like I'm going crazy. It also makes the room feel like it's floating around with nothing under it. This is one of the most terrifying sensations derealisation has ever caused. I hate it. I'm constantly panicking about it.