My HAIR...

my hair keep falling down..each time i take my bath..i will look at the floor..there is so many hair fall to the bathroom floor...one day my sis ask me..."it was your hair right???" i said " nop...its not mine..." she said that" don't lie to me...i know it was your hair..." i just went to my room...they other already realize that i'm losing my hair little by little....what happen if i bald???