Do i unconsciously know Urdu?

The other night i had a dream in Urdu. It was weird because I don't know Urdu at all except for a few expressions and miscellaneous words. Certainly not enough to carry on a conversation but in this dream, Urdu was being spoken. What i want to know is if it was actually Urdu or made up. I know we only use about 10% of our brains so is it possible that my unconscious mind knows Urdu? Since it's around so much lately, did some part of my brain learn the language yet i didn't. Or was the Urdu in my dream really not Urdu? It sure sounded like it. Sadly, no one can tell me for sure since i can't remember what was said (in Urdu) although i remember the meaning.