Hair loss could be the reason of Disblanced ENDOCRINE SYSTEM.... so I would advice u to go for the Blood test and go for the Full spectrum of it (not only thyroid).. ALL endocrine system..
If you have hypo thyroid then u can contact me here and i will send u the links (of my own) with a proper healthy Diet of how to fix it... my id is easy to remember "1234567'.
I am not charging for it :))... just Love Helping others..