.... can I sleep yet?

In the past 48 hours I've had 3 episodes of feeling totally not connected with the rest of me. Like someone chopped off my head, and left a lot of pain. And the episodes last for a few minutes to a half an hour. I hate them, but I have to except that part. And now it has to be time for bed.... after 3 hours of one problem for physics. I just hope tomorrow is productive.