Hi Nick, now that I have been on Femara for over 2 years, most of my symptoms have eased. I still take 2 fish oil capsules a day, but I do not have aches and pains anymore. My fingers are still a little stiff in the morning, but my trigger fingers are now only mild, and I have strength back in my fingers for gripping things now. I do not remember having side effects from Tamoxifen. To go onto Femara the Dr will want to make sure you are now menopausal, as this drug works differently to Tamoxifen, and to my knowledge they like you to be fully through the menopause. A blood test can confirm this. As Femara removes very last trace of estrogen from my body, I now have very dry skin, and vagina, my bone density is decreasing, and I am sure my hair is thinning as well. These things also happen with menopause, so it is hard to know I which is the culprit. Maybe both together. Love Chris xx