It definitely sounds like you were abducted. I have read a book called Visitors from Within. They do put a probe up your nose and into your brain I think. Also, I relate to this as I think something happened to me when I was little and the funny thing is my brother remembers it too a little. He remembers the aliens coming to the house and FOREVER when my brother and I were little we were terrified of the dark and made my mother sleep next to us in the same room before we fell asleep! I am sorry this happened to you, maybe you can read more books on it.
The one thing they do say is that they only come to you when you unconsciously invite them. It is always an agreement, and they are not necessarily bad. I am not sure I understand it all that well though. :)