Suggest Treatment For Lack Of Menstrual Periods With Abdominal Distension

hi, i have not had my periods for the past 8 years due to being underweight. now my weight is fine but still no periods. the gyenecologists gave estrogen and other similar stuff which gave me excessive abdominal bloating.I took these medicines for an
bout 1-2 months. and now after 1 year no periods and excessive abdominal bloating and swelling of the entire body and face in general. please tell me what to do. i a very depressed. thankyou