Fox,

Since you work the afternoon shift, it doesn't seem all that surprising to me that you stay awake till 1am or 2am and aren't up till 10:30am. Or do you work less than 7 hour shilfts? It's kind of like day shift workers getting home from work at 6PM and staying awake for a few more hours till sleep time. Not too surprising. I don't think you are doing anything out of the ordinary. It is considered shift work.

I have a sister, who when she worked afternoons, got home at 11pm and she would mill about making a snack of whatever till 12:00am to 2am and want to talk sometimes. Going to sleep and getting up at the times you wrote about seem okay sort of, in your case.

Perhaps the dissociation may or may not be related to this.