 [ Symptoms ] what vitamin can i use to prevent hair loss  i lose lots of hair while i wash and brushing my hair nothing has been changed in my diet and or in my daily regimen  i did travel internationally for a month in july thru aug i am 45 yrs of age female i did take all the precautions i e vitamins required shots and malaria pills  please help [ Disease ] hi you may have kikidney function issues which need to be assessed by doing usg of abdomen renal doppler get kidney function tests like blood urea and serum creatinine checked endometriosis can cause severe hormonal variations leading to gynecological related issues consult a gynecologist thanks