Hello,
Welcome to health care magic.
Severe hair loss over few months is called
telogen effluvium.
It is a hair loss pattern usually triggered by a physical illness ( like
viral fever,
typhoid fever, hepatitis, etc), anaemia, child birth, stress, crash dieting and severe
weight loss which you would have about 3 - 6 months prior to onset of hair fall.
You need to check your hemoglobin levels, serum ferritin levels. Premature Greying is still a poorly understood entity. The causes suggested are genetic, vitamin deficiencies, stress etc. The treatment recommended is vitamin supplements with atleast 100 to 200 mg of
calcium pantothenate. Even Biotin and anti oxidants help. Now a new product has come in the market(Melitane) which has peptide which stimulates the pigment producing cells of hair. Sufficient studies and experience is not yet available for it.
I suggest that you take a hair supplement containing biotin and calcium pantothenate. This will help for both your hair fall and early greying.
Have a well balanced diet rich in antioxidants.
Hope this helps you.
Take care.