Can Lemon Juice on Roots Cause Hair Loss?

I tried to extend my time between frosts by putting straight lemon juice on my roots to lighten them. I did this 2 or 3 times and about one month later, noticed my hair was coming out in my comb much more than usual. I have hair breakage around my temples and my hair parted is much wider and my scalp is now visible. Is this likely from the lemon juice, aging, hormones, stress, or something else?