I often will dissociate when in a new work environment and it causes these symptoms. It will also feel like I’m not really the one moving my body, everything is far away/in a cave, and I’ll get incredibly startled by any person coming through a door or turning a corner. First time it happened at work when I was a teenager I sat in my car for 30 minutes after work because I didn’t think it would be safe to drive. It felt like I was intoxicated.