I had a 10 days of break 2 years ago. I took a coffee with sugar, went to my ex appartment, had sex with her. When i got out of there i was back to normal without any transition. I was taking Celexa at the time for my third week. Never had any real break after that in fact after the "remission" it got worse for a few month.
At least i guess it means there is no brain damage if things can get back to normal once. I dont expect it to happen again.
I am in my third or fourth year with DP/DR.