What Is The Cause Of Amenorrhea?

my age is 40 years old and iam married. my husband is died10 years before. iam ill due to amenorrehea problems. my periods are stopped from last 5 months. and i am also ill due to uric acid high with 8.9 or 9. iwant to to know that am isholud cure my self for menstruation period. and iwant to know the reason that is uric avid responsible for the stopage of amenorrehea. iam also fat.