A few months ago whenever I would be in my room or waiting for the computer alone I started daydreaming, but while i was daydreaming I would pace back and forth across the room.

Now recently whenever I do this not only do I pace but I'll start acting out and saying whatever I am in my daydream, and even acting out some of the other people or charachters from my dreams.

(Example#1: The pacing -After writing that sentence above I got up and walked across the room and came back and sat down, And didnt even realize it until I got finished with the sentence below.)

(Example#2: The acting and talking to myself- All day long Ive been acting out a made up charachter from one of my daydreams as one of the jokers henchmen from The new Batman Movie... Which by the way is very awkward when your parents walk in and your pretending to be some giggling psychotic criminal... or a ninja... or a vampire... charachter from a tv show, movie, book, or whatever else I decide to "dream" about that day.)

Most of the time I dont even realize Im doing it until after a few minutes...

But anytime someone walks into the room I imedeatly stop and try to cover up what I was doing. I dont really know why I hide it, I just do.

And if someone is in the room with me when this happens... I go into another room for just a few minutes "daydream" then come back.

Anyways onto the question:
I was just wondering if I should be worried about this or if its a bad thing, especially since half of the time I dont realize Im doing it, or is it common, or do I have some type of disorder or something?

1960's Adam West
1980's Michael Keaton
1995 Val Kilmer
1997 George Clooney
2005 Christian Bale

my order:
Michael Keaton
Adam West
Christian Bale
George Clooney
Val Kilmer