This is real sad story
http://www.dailymail.co.uk/news/worldnews/article-1201363/At-6ft6ins-34stone-meet-largest-heaviest-women-planet--shes-growing.html

Women who are victims of acromeglic gigantism are far from our fantasy giantesses which, unfortunately do not exist (hence "fantasy"). It usually results from a brain tumor in the vicinity of the pituitary gland which causes it to go wild producing far too much HGH. In some cases it can be removed and the person can be helped. In other cases it is inoperable and the condition persists usually resulting in debilitating disability and eventual death. The late Sandy Allen grew to over seven and a half feet tall. She was confined to a wheel chair for most of the late stage of her life. Yao Defen of China is about the same height and appears to be heading toward a similar fate. It affects virtually all organs and bones incuding those of the face usually resulting in grotesque facial deformity. That's why we never see a giantess who looks like Anna Kournakova. But we can always dream