grey hair and premature grey hair is passed down through genetics but being born with grey hair is rare but it does happen did you mom smoke while she was pregnant? there have been studies that women who smoked some had babies with Grey hair. Or greying of the hair also if your mom was on a poor diet or under alot of stress could have caused it also. No way to determin unless you go to a doctor but I dont think past life had anything to do with it personally.