I am 48, went through early menopause about 5 years ago, haven't had a period for three years except for one month about a year ago when I started drinking soy protein shakes. Periods stopped promptly after I stopped drinking the soy shakes. Last month I was treated for a kidney stone (hydrocodone, tamsulosin, morphine, antibiotics) and I started menstruating today. Any insight as to which of these drugs may be the culprit? Thank you.




