Side effects of coming off Tamoxifen?

32b

I finished my course of Tamoxifen and few weeks ago (yay!) and just ended my first post-Tamoxifen period. Now I'm having some abnormal discharge, and also there's what looks like a pimple in my healthy breast. I have a doctor appointment to get it checked out, but while I'm waiting has anyone had weird stuff happen while your body is adjusting to getting back to normal or should I be worried it's something else?