What Are the Symptoms of Vitiligo?

It is very difficult to make a diagnosis without seeing you , or having the benefit of a photograph. However, your mentioning that your hair turned white on a patch of the off color does conjure up vitiligo in my mind. Certainly a moderate strength topical steroid, a Vitamin D analgoue such as Vectical, or a cacineurin inhibitor such as Protopic could be tried singly or in combination. I would suggest seeking treatment early before the vitiligo becomes entrenched.