Hi
I can't answer your query (sorry!) but as it hasn't been answered, I'm replying to bump your post up so it's back on the first page. However, I also wonder are you under 50? (because of taking Tamoxifen) -if so, the Under 50's breast cancer group would be worth joining and perhaps asking the ladies who are also members of this group and more likely to be taking Tamoxifen.
Hopefully someone on here can assist.
Best wishes,
