What are the vitamins which are good for my hair ?my hair has been fallig for 5 months and now it is thin?

Could be: Some women are prone to hair loss. Could be genetic but some other things could be ruled out. Sometimes a fungus can cause some hair loss. Dysfunctions of thyroid can also cause hair loss. Vitamin/mineral deficiency can also cause it. Check with your physician for a full work up. But also have a healthy balanced diet, a multivitamin in the morning, 8 glasses of water a day and 7-8 hrs of sleep.