I had a total hysterectomy last summer due to incredibly elevated estrogen levels. Off the charts, carcinogenic levels. I m 54, and have taken Prozac for years. I am on HRT and doc says my levels are good, but I alternate between sad/hopeless and wound up/nervous. My psych increased my prozac from 20mg to 40mg, but it has helped only minimally. I would like to know more about the interactions between estrogen and seratonin. Did my loss of high levels mean I now need more SSRI?