I can't tell if I'm going into trance or not. Here are the circumstances:
My mind seems more relaxed; thoughts don't enter my mind randomly as often. I would say that it slows down about 80%, I'd say.
The rest of my body generally feels numb and even not there. However, "jolts" come in to certain parts of my nerves at random intervals every so often, bringing sensation back to that area.
Even though my body [except my head, neck, and shoulders] is numb, I can still move them out of trance with little effort. However, they are still harder to move than normal.