...Astral self? (needs help)

Im sorry, i did not no what category to put this into, so i chose this.

So a few minutes ago, i walked into my bathroom, i then look at my face, and i started to focus real hard on it for some reason. Then my face started to turn darker, and darker, and darker, and my eyes became a goldish grey color....what does this mean? Know whenever i look into a mirror or somewhere where i see myself and i focus and concentrate i see this. PLease someone explain to me whats happening!

Thanks!
Jake