What could cause large amounts of hair loss. in women over 60. run my hand through my hair and get alot of hair every time. hair on my clothes and really thinning.. please help..could any medications or vitamins cause this?

Hair loss is common at your age and most of the time we could not identify a specific cause. However, at times a new hair product such as hair dye or hair shampoo may be the culprit. Systemic or local scalp disease can exacerbate the usual hair loss but other symptoms may be present. You should see a dermatologist for ruling out certain reversible causes. Good luck.