Yorkies coats can change colors and that is probably what is going on here. Gizmo still has a black coat on him but my Reeses turned from jet black to a light silver VERY quickly! It does not change back black but no worries..your furbaby will still be a cutie!!!
What are you feeding your furbaby? I feed Lifes Abundance Premium dog food. It is great for dogs of all ages and healthy for them too!!