I'm always dark skinned in my dreams, not pitch black, but like there is a layer of dirt covering me or that the lighting is really bad, but only on me. only my eyes are different, the are really bright and have a spark to them, like I'm hyper and ready for action

this is weird cause in reality I'm REALLY pale, and my eyes have been discribed as calm and gentle

it has always been like that since I was a kid.

I think it just changed to about a month ago. my skin is clean and has the same quality -sparkle- as my eyes do.

anyone has a clue about this???

To dream that you or something is dirty, represents your anxieties and feelings toward sex. The dream stems from low self-esteem and feelings of being unworthy. You need to purify your mind, heart and body.
http://www.freedreaminterpretation.co.uk/2480,Dirty.html