Hi senseless (sounds so wrong, but you didn't leave your name)
I have a similar story without the ovary tumor - 2B, ER/PR+, Her2-, had a lumpectomy, didn't get it all and showed extensive DCIS, discussed my options and did not want radiation (long story), so ended up with bilateral mastectomy. I was 40 at dx so also premenopausal so I opted for chemically ablating my ovaries with Lupron so I could take an aromatase inhibitor. First it was Arimidex, but I did have lots of bone pain - mornings were horrible to get up and walk. So, we switched to Femara. I don't think the side effects were that bad on Femara, although I am off all treatment now. My oncologist thought I'd have better quality of life (less depression, mood swings, hot flashes) and she also wanted to see if I was in menopause. Nope. I know that I've read and heard that different people react differently to the various aromatase inhibitors, so my side effects might never effect you.
However, since you have the history of ovarian tumors, and if it were me, I'd take out the other ovary just like the dr. suggests. I've moved so have had different oncologist, and they have all said (and I've done my own research and agree) that aromatase inhibitors have better odds and keep down recurrences with different and less worrisome side effects as tamoxifen. One doc did an online prognosticator while we were conferring and it was a clear 5% positive rate for non-recurrence with the AIs with my stats plugged in. However, AIs are only if you're ER/PR+, which not everyone is, so thankfully we have tamoxifen, too.
Best of luck with your decision. Please come back often, if you can. The ladies here are wonderfully supportive. It's a club we wish we weren't part of, but are happy we have sister's in health. Take care!!
The finger of God touches your life when you make a friend.
----Mary Dawson Hughes---