There are lot many causes of causes of hair fall.
Out of those, two fit in your case. Both anaemia and stress lead to hair fall (telogen effluvium
Once these are elliminated, you may start improving, but a lag period of 3-6 months will still be there.
Keep yourself away from stress and improve your haemoglobin
level and wait for the said period.
If you cannot wait, then visit a dermatologist
so that treatment can be started like minoxidil
, biotin etc.
Dr. Ajit Singh Kulhari
MD - Skin & VD