@FionaM13 I can't speak about Tamoxifen from experience because I am newly diagnosed and I will have surgery the week after next. My surgeon did however say that I will need to go on oestrogen blockers afterwards and I've been quite anxious about this, as I've been reading online forums about all the side effects. I know it's probably unhelpful to worry about stuff that's down the track, plus I know that everyone is affected differently, but it's hard to turn the mind off. I spoke with my acupuncturist about the blockers and she said that there are herbal pills that can be taken instead. She said that some of her cancer patients only take the herbal ones, some of them only take Tamoxifen and others take both. I hope that whatever you choose works for you.