Can Bleaching Cause Hair Fall?

Hi doctor's, I am a 21 year old female and until now I have always had thick strong healthy hair-in fact, it was impossible to get the fullness out of my hair. But last weekend I decided to bleach my hair and did so twice to acheive the desired color. My hair immidiately fell out in patches and is continuing to fall out little by little. I wanted to know if the damage I did to the scalp and follicle could possibly be permanant and I also wanted to know if mixing the contents of a womens daily supplent into a hair conditioner would actually do anything to strengthen my hair? I know that you are not a stylist but I really hope yu can give me some advice