Hi Celeste
Did you know that you can have a blood test that will test if your body is metobolising tamoxifen, that will tell you if the tamoxifen is working on you.
Might be worth mentioning to your doctor does this test while you are still on Zoloft (and if you are happy still taking Zoloft). The test is not on the PBS, and is around $100.00 I believe. The test has been available in the US for some time but I think it has only recently been available here in Australia.
Someone in your medical team could probably tell you a little more info about this and whether this would be appropriate for you.
Tanya