Hair loss???

Akashia

So I underwent fertility treatments from 12/2018-12/2019 every month, multiple times a month including injections.. Never had any hair loss during this time. Since ive stopped treatments my hair is falling out horribly!!! I included a picture of my hair after ONE brushing when I got out the shower. This happens every day.. idk what to do or what to cause it... anyone else have this problem? 😒