This morning I woke up after sleeping for 12 hours. I didn't notice anything strange immediately but after a while whilst drinking my coffee at the table, I started feeling floaty, sort of lightheaded and weak. I checked my blood pressure and it was normal. I felt like I was in a dream, like I would wake up any minute. I still feel this way hours later, it seems to go away a little and then return. My body feels numb, and I don't feel like I have full control of it. Is this depersonalization?