Yes. It got thin and brittle and started falling out.
But that was the last time I lost weight -- when I dropped from 135 to 115 in under 3 months with a period of veganism and a lot of self-deprivation. I was battling depression and simply skipped tons of meals. This time, I've tracked my food, exercised, eaten as much as before (though of different things), and my hair has gotten better. I'm not losing quite as quickly, but I look tons better. My experience is evidence that crash dieting is a horrible idea.
... It is never too late to be what you might have been.