Thanks Leonie for taking the time to respond. Yes I must admit i haven't had any real bad side effects from tamoxifen other than the damn HOT FLUSHES!!!...I've been on tamoxifen for about 15 months now and at first the hot flushes were severe, then they eased up to very mild. Now they are starting to intensify again, I think with the warmer weather....but I shouldn't complain.....I've been very lucky compared to others who have suffered terribly with treatment! :-) Yes, I plan to talk to my oncologist about this....when or if a switch is made to an aromotase inhibitor. Perhaps they will run a hormone test to see how I'm going re menopause? Anyway, thanks again, Celeste x