[TiffnBailey]

When i first got Bailey, she was very dark all over and as she's gotten older, her face has started turning brown which i thought was cute so i didn't mind. Well more recently i started noticing that her hair on her body was starting to grow in in a silvery gray color. So she went to the groomer on sunday to get her shorter summer cut, and she's all silver now because they cut the hair that was black off in the cut. Is it normal for a yorkie's coloring to change so dractically?? And will it go back to being dark?? She looks like a little old lady with all this gray hair!