Oof I'm sorry you had to go through all of that stress, not fun!
It's definitely a cool feature and if it's any consolation I doubt anyone would ever notice whatever grey hairs you have as probably the first thing anyone would notice is the white eyebrow and after that they'd be too busy talking to the interesting person with the white eyebrow XP
RE: Dia mundial del vitiligo y mi historia con una ceja blanca / World Vitiligo Day and my history with a white eyebrow.