Kathleen, When visiting my cousin this summer, her husband (a neurosurgeon) related this to me. He had a woman see him for possible surgery for a pituitary tumor (she was experiencing sudden unexplained lactation and her children were teens!) Tests showed no physical evidence of a tumor so he asked her about her sexual foreplay practices with her husband. It turns out that this woman's husband used EXTENSIVE nipple stimulation during foreplay thus creating a milk supply! Could this be the case with your mom?