This sounds like a type of seizure to me. A temporal lobe seizure that probably was brought upon by stressors, this sounds exactly like what my wife has experienced. When she was under immense stress she would see things, like a dream that never was a dream, like deja vu, is coming back into her head, she would get all hot and clamy, unable to calm down. Also she would forget what day it is and what was going on. After this was over she wouldn't know what happened during the time this was happening.
Here some links about it:
Good thing is sometimes it's just a freak thing that it happens and can be controlled by medicine easily. I'm glad to hear you haven't experienced anything like this again.
As for being creeped out as a kid, I would wake up in the middle of the night and try to get my mom to wake up to comfort me but she is such a heavy sleeper that me being a little kid thought she was dead instead of just dead asleep. After that I would look up at the ceiling in our dining room on the way back to my room and see this yellowish/greenish orb rolling across the ceiling. I don't recall how many times this happened but it was frequent enough to stick with me that I can picture it in my head right now.