I use to have straight to light wavy hair texture , which has in last 1 year has changed to from curls. Done no treatment on hair . Hair turned brittle and rough. Facing hairfall issue as well . I use to have few grey hair, now the count of it also has gone drastically up. Both the picture attached are just post wash conditioner and serum. No heat pr other treatment. Could somebody tell what could be the cause. Or if i have to run any test.