I am 39 yo female. Ive had thinning hair since 35 mild. I recently went on a crash diet and lost 25 lbs very quickly.... now my hair is falling out in handfulls in shower, when i shampoo, rinse, its a handful for 2 mos at least now... Although my hair had been thinning, this is so much all over. I have to hide my thinning spots at bangs, front side, and part by comb overs and various styles....Dermatologist told me to use mens rogaine and take biotin daily and see what happens in 6 weeks.... has this happened to anyone else before?