The various hormones secreted in the body by the different glands to perform several functions to ensure normal body function, are like a band of musicians while the pituitary gland
is like the master coordinating every aspect. You should get a thorough gynecological examination performed to rule out any local causes for the excessive bleeding during the periods, added by a sonogram and blood tests including the hormonal
profile. Since you have milk production, it is possible that your prolactin
levels are high and this is why your doctor perhaps wanted to assess the condition of the pituitary. Take proper nutritional supplements and follow the advice of your doctor. Good luck.